List of shipwrecks in September 1942

The list of shipwrecks in September 1942 includes all ships sunk, foundered, grounded, or otherwise lost during September 1942.

1 September

 * SS Ilorin (🇬🇧 United Kingdom): World War II: The coaster was torpedoed and sunk in the Gulf of Guinea off Legu, Gold Coast 5°N, -1°W) by GS U-125 (1940) with the loss of 33 of her 37 crew.
 * GS U-756 : World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (57.68333°N, -31.5°W) by HMCS Morden (K170) with the loss of all 43 crew.

2 September

 * MV Passat (1926) (🇩🇪 Germany): World War II: The tanker was bombed and sunk at Saint-Nazaire, Loire Atlantique, France in an Allied air raid. The wreck was raised and scrapped in 1949.
 * PB-35 : World War II: The patrol boat was bombed and sunk off Santa Isabel Island (-7.26667°N, 158.05°W) by a US Army B-17 of the 11th Bomb Group. 92 crewmen killed.
 * SS Teiryu Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk off Kinkasan Harbour, Honshū (42.13333°N, 141.25°W) by USS Guardfish (SS-217).
 * GS U-222 : The Type VIIC submarine collided in the Baltic Sea off Pillau, West Prussia (54.41667°N, 19.5°W) with GS U-626 and sank with the loss of 48 of her 51 crew.

3 September

 * SS Arnon ( undefined): World War II: The coaster was torpedoed and sunk in the Mediterranean Sea 5 nmi north of Tartus, Syria by GS U-375 . All crew survived.
 * SS Chita Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk at Kinkasan Harbour by USS Guardfish (SS-217).
 * SS Donald Stewart (🇨🇦 Canada): World War II: Convoy LN 7: The cargo ship was torpedoed and sunk in the Gulf of St. Lawrence (50.53333°N, -58.76667°W) by GS U-517 with the loss of three of her 20 crew. Survivors were rescued by HMCS Shawinigan (K136) and HMCS Trail (K174) (both ).
 * SS Hollinside (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 3 nmi of Cape Sines, Portugal (approximately 38°N, -19°W) by GS U-107 (1940) with the loss of three of the 51 people on board. Survivors were rescued by Spanish trawlers.
 * SS Kaimei Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk off Kinkasan Harbour, Honshū (40.23333°N, 141.85°W) by USS Guardfish (SS-217).
 * Miriam ( undefined): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea 5 nmi north of Tartus, Syria by GS U-375 . All crew survived.
 * SS Ocean Might (🇬🇧 United Kingdom): World War II: The Ocean ship was torpedoed and sunk in the Atlantic Ocean (0.95°N, -4.18333°W) by GS U-109 (1940) with the loss of four of her 54 crew. Survivors reached land in their lifeboats.
 * SS Penrose (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 3 nmi off Cape Sines (approximately 38°N, -19°W) by GS U-107 (1940) with the loss of two of her 45 crew. Survivors were rescued by a Spanish trawler.
 * Salina ( undefined): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea 5 nmi north of Tartus, Syria by GS U-375 . All crew survived.
 * SS Tenyu Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk off Kinkasan Harbour by USS Guardfish (SS-217) (.
 * GS U-162 (1941) : World War II: The Type IXC submarine was depth charged and sunk in the Atlantic Ocean north east of Trinidad (12.35°N, -59.48333°W) by HMS Pathfinder (G10) HMS Quentin (G78) and HMS Vimy (all ) with the loss of two of her 51 crew.
 * GS U-705 : World War II: The Type VIIC submarine was depth charged and sunk in the Bay of Biscay (46.7°N, -11.11667°W) by an Armstrong Whitworth Whitley aircraft of 77 Squadron, Royal Air Force with the loss of all 45 crew.
 * USS Wakefield (AP-21) : The troopship caught fire in the Atlantic Ocean. She was taken in tow by ST Foundation Frankin (🇨🇦 Canada on 5 September and beached at McNab's Cove, Halifax, Nova Scotia, Canada on 8 September. Refloated on 14 September, eventually towed to Boston, Massachusetts, where she was declared a constructive total loss but was repaired and returned to service.

4 September

 * SS Amatlan (🇲🇽 Mexico): World War II: The tanker was torpedoed and sunk in the Gulf of Mexico (23.45°N, -97.5°W) by GS U-171 with the loss of ten of her 34 crew.
 * JAPANESE AMMUNITION SHIP Kashino : World War II: The ammunition ship was torpedoed and sunk in the South China Sea off the east coast of Formosa (25.75°N, 122.7°W) by USS Growler (SS-215).
 * SS Padenna ( undefined): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea approximately 45 nmi north of Tobruk, Libya by HMS Thrasher (N37).

5 September

 * USS Gregory (DD-82) : World War II: The High-speed transport, a former Wickes-class destroyer, was sunk in the Pacific Ocean near Guadalcanal by Hatsuyuki, Murakumo and Yudachi (all.
 * USS Little (DD-79) : World War II: The High-speed transport, a former Wickes-class destroyer, was sunk in the Pacific Ocean near Guadalcanal by Hatsuyuki, Murakumo and Yudachi (all.
 * SS Lord Strathcona (🇨🇦 Canada): World War II: The cargo ship was torpedoed and sunk in the Conception Bay, Newfoundland (47.58333°N, -52.48333°W) by GS U-513 . All 44 crew survived.
 * MV Myrmidon (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Cape Palmas, Liberia (0.75°N, -6.45°W) by GS U-506 . All 245 people on board were rescued by HMS Brilliant (H84).
 * SS Saganaga (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in Conception Bay (47.58333°N, -52.48333°W) by GS U-513 with the loss of 30 of her 44 crew.

6 September

 * SS Aeas (🇬🇷 Greece): World War II: Convoy QS 33: The cargo ship was torpedoed and sunk in the Saint Lawrence River (49.16667°N, -66.83333°W) by GS U-165 (1941) with the loss of two of her 31 crew.
 * MV Anshun (1930) (🇬🇧 United Kingdom) Sunk in Milne Bay by gunfire from Japanese cruiser Tenryū in a night attack.
 *  Helen Forsey (🇬🇧 United Kingdom): World War II: The schooner was shelled and sunk in the Atlantic Ocean 500 nmi east south east of Bermuda (28.58333°N, -57.58333°W) by GS U-514 with the loss of two of her six crew.
 * SS John A. Holloway (🇨🇦 Canada): World War II: Convoy GAT 2: The cargo ship was torpedoed and sunk in the Caribbean Sea north of Gallinas Punta, Colombia (14.16667°N, -71.5°W) by GS U-164 (1941) with the loss of one of her 24 crew.
 * SS Taika Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the South China Sea off the east coast of Formosa by USS Growler (SS-215) . She split in two and sank in two minutes.
 * Turkian (🇪🇬 Egypt): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea 20 nmi off Khan Yunis by GS U-375 . All nineteen crew survived.
 * MV Tuscan Star (1930) (🇬🇧 United Kingdom): World War II: The cargo liner was torpedoed and sunk in the Atlantic Ocean 300 nmi south west of Cape Palmas, Liberia (1.56667°N, -11.65°W) by GS U-109 (1940) with the loss of 51 of the 114 people on board. Survivors were rescued by SS Otranto (1925) (🇬🇧 United Kingdom).
 * USS YP-74 :World War II: The Yard Patrol Boat sank in a collision in the Aleutians with merchant ship Derblay (🇺🇸 United States).

7 September

 * SS Mount Pindus (🇬🇷 Greece): World War II: Convoy QS 33: The cargo ship was torpedoed and sunk in the Gulf of St. Lawrence south of Anticosti Island, Quebec, Canada (48.83333°N, -63.76667°W) by GS U-517 with the loss of two of her 37 crew.
 * SS Mount Taygetus (🇬🇷 Greece): World War II: Convoy QS 33: The cargo ship was torpedoed and sunk in the Gulf of St. Lawrence south of Anticosti Island (48.83333°N, -63.76667°W) by GS U-517 with the loss of two of her 28 crew.
 * SS Oakton (🇨🇦 Canada): World War II: Convoy QS 33: The cargo ship was torpedoed and sunk in the Gulf of St. Lawrence south of Anticosti Island (48.83333°N, -63.76667°W) by GS U-517 with the loss of three of her twenty crew. Survivors were rescued by HMCS Q-083.
 * HMCS Raccoon : World War II: Convoy QS 33: The armed yacht was torpedoed and sunk in the Strait of Belle Isle (49.01667°N, -67.28333°W) by GS U-165 (1941) with the loss of all 37 crew.
 * Tor II (🇫🇴 Faroe Islands): World War II: The trawler was sunk in the Atlantic Ocean south of Iceland (62.5°N, -18.5°W) by GS U-617 with the loss of eighteen of her 21 crew.

8 September

 * SS Ocean Venture (🇬🇧 United Kingdom): World War II: The Ocean ship was torpedoed and sunk in the Atlantic Ocean (37.08333°N, -74.76667°W) by GS U-108 (1940).

9 September

 * USCGC Muskeget (WAG-48) : World War II: The weather ship was torpedoed and sunk in the Atlantic Ocean (53°N, -42.5°W) by GS U-755 with the loss of all 121 people on board.
 * MV Peiping (🇸🇪 Sweden): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (23.83333°N, -50.16667°W) by GS U-66 (1940) with the loss of three of her 34 crew.
 * USS YP-346 : The Yard Patrol Boat sank in the Solomon Islands off Tulagi.

10 September

 * American Leader (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 800 miles west of Cape Town, South Africa (-45.73528°N, 9.76694°W) by Michel.
 * ITALIAN HOSPITAL SHIP Arno : World War II: The hospital ship was torpedoed and sunk in the Mediterranean Sea by Royal Air Force aircraft 40 nmi north east of Ras el Tin, Libya.
 * SS Elisabeth van Belgie (🇧🇪 Belgium): World War II: Convoy ON 127: The cargo ship was torpedoed and sunk in the Atlantic Ocean (51.5°N, -28.41667°W) by GS U-96 (1940) with the loss of one of her 56 crew.
 * SS Empire Oil (🇬🇧 United Kingdom): World War II: Convoy ON 157: The tanker straggled behind the convoy. She was torpedoed and damaged in the Atlantic Ocean (51.38333°N, -28.21667°W) by GS U-659 . She was then torpedoed and sunk the next day by GS U-584 . All 53 crew were rescued by HMCS Ottawa (H60) and HMCS St. Croix (I81) (both ).
 * HMS MGB 335 (MGB335) : World War II: The Fairmile C-class Motor Gunboat was shelled and sunk in the North Sea by Kriegsmarine surface vessels.
 * MV Sveve (1930) (🇳🇴 Norway): World War II: Convoy ON 127: The tanker was torpedoed and sunk in the Atlantic Ocean by GS U-96 (1940) . All 39 crew were rescued by HMCS Sherbrooke (K152).

11 September

 * HMCS Charlottetown (1941) : World War II: Convoy SQ 30: The flower-class corvette was torpedoed and sunk in the Gulf of St Lawrence 11 nmi off Cap-Chat, Quebec by GS U-517 with the loss of eight of her 64 crew.
 * SS Cornwallis (1921) (🇨🇦 Canada): World War II: The cargo ship was torpedoed and sunk at Bridgetown, Barbados (13.08333°N, -59.6°W) by GS U-514 . She was raised, repaired and returned to service in August 1943.
 *  Delães (🇵🇹 Portugal): World War II: The schooner was shelled and sunk in the Atlantic Ocean (50.05°N, -29.53333°W) by GS U-96 (1940) . All 54 crew survived.
 * MV Empire Dawn ( UK): World War II: The cargo ship was shelled and sunk in the Atlantic Ocean south west of Cape Town, South Africa by Michel . The attack continued after ship surrendered. Michel's captain, Helmuth von Ruckteschell was convicted of a war crime over this incident.
 * MV Fjordaas (🇳🇴 Norway): World War II: Convoy ON 127: The tanker was torpedoed and damaged in the Atlantic Ocean (51.26667°N, -29.13333°W) by GS U-218 and was abandoned by her crew. She was later reboarded and reached the Clyde on 15 September. Subsequently repaired and returned to service in December 1942.
 * MV Hindanger (🇳🇴 Norway): World War II: Convoy ON 127: The cargo ship was torpedoed and damaged in the Atlantic Ocean (49.65°N, -32.4°W) by GS U-584 with the loss of one of her 40 crew. Survivors were rescued by HMCS Amherst (K148), which scuttled the ship.
 * SS Hokushu Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sun in the Pacific Ocean off the Marshall Islands by USS Narwhal (SS-167).
 * SS Jussi H. (🇫🇮 Finland): World War II: Continuation War: The cargo ship was torpedoed and sunk by a SOVIET SUBMARINE S-13 off Öregrund, Sweden.
 * SS Kanto Maru : World War II: The aircraft transport was torpedoed and sunk in the central Makassar Straits, 30 miles north west of Kendari, Celebes, Netherlands East Indies (-3.25°N, 118.45°W) by USS Saury (SS-189) . 13 passengers and 26 crewmen killed.
 * JAPANESE DESTROYER Yayoi : World War II: The Mutsuki-class destroyer was bombed and sunk 8 miles north west of Vakuta Island in the Solomon Sea(-8.75°N, 151.41667°W) by US Army B-17s and RAAF Hudsons. 68 crewmen killed. 83 survivors rescued by JAPANESE DESTROYER Isokaze and JAPANESE DESTROYER Mochizuki (both ) from Normanby Island on the 26th.

12 September

 * SS Bonden (🇫🇮 Finland): World War II: Continuation War: The cargo ship was torpedoed and sunk by a submarine south of Mariehamn, Åland 59.91667°N, 19.9°W).
 * SS Empire Moonbeam (🇬🇧 United Kingdom): World War II: Convoy ON 127: The cargo ship straggled behind the convoy. She was torpedoed and damaged in the Atlantic Ocean by GS U-211 . She was then torpedoed and sunk by GS U-608 at 48.91667°N, -33.63333°W) with the loss of three of her 55 crew. Survivors were rescued by HMCS Arvida (K113).
 * SS Hektoria (🇬🇧 United Kingdom): World War II: Convoy ON 127:The former White Star Line ocean liner and now whale factory ship straggled behind the convoy. She was torpedoed and damaged in the Atlantic Ocean by GS U-211 . She was then torpedoed and sunk by GS U-608 at 48.91667°N, -33.63333°W) with the loss of one of her 85 crew. Survivors were rescued by HMCS Arvida (K113).
 * SS Hera (1882) (🇫🇮 Finland): World War II: Continuation War: The cargo ship was torpedoed and sunk by a submarine north of Åland 60.93333°N, 19.1°W).
 * RMS Laconia (1921) (🇬🇧 United Kingdom): World War II: Laconia Incident: The ocean liner was torpedoed and sunk in the South Atlantic near Ascension Island by U-156.
 * SS Niyo Maru 🇯🇵 Japan): World War II: The cargo ship was bombed and sunk off Burma by Royal Air Force aircraft.
 * SS Robert Bornhofen (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in Porsangerfjord, Norway.
 * SS Stanvac Melbourne (🇵🇦 Panama): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean off Trinidad (10.5°N, -60.33333°W) by GS U-515 with the loss of one of her 49 crew.
 * MV Trevilley (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (-4.5°N, -7.83333°W) by GS U-68 (1940) with the loss of two of the 53 people on board. Two survivors were taken by U-68 as prisoners of war. Others were rescued by SS Cubango (🇵🇹 Portugal) and FRENCH AVISO Dumont d'Urville  or reached land in their lifeboat.
 * GS U-88 (1941) : World War II: The Type VIIC submarine was depth charged and sunk in the Arctic Ocean south of Spitzbergen, Norway by HMS Faulknor (H62) with the loss of all 46 crew.
 * MV Woensdrecht (1926) (🇳🇱 Netherlands): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean south west of Trinidad (10.45°N, -60.28333°W) by GS U-515 with the loss of one of the 74 people on board, a survivor from SS Cressington Court (🇬🇧 United Kingdom). Survivors were rescued by two United States Navy patrol boats. U-515 fired three more torpedoes at Woensdrecht, which broke in two. The stern section sank and the bow section was towed to Trinidad. The ship was declared a total loss.

13 September

 * Africander (🇵🇦 panama): Convoy PQ 18: The 5,441 grt freighter was sunk by a torpedo from an aircraft off the Lofoten Islands
 * SS Empire Beaumont (🇬🇧 United Kingdom): World War II: Convoy PQ 18: The cargo ship was torpedoed and sunk in the Arctic Sea by aircraft of KG 26, Luftwaffe.
 * MV Empire Lugard (🇬🇧 United Kingdom): World War II: Convoy TAG 5: The cargo ship was torpedoed and sunk in the Atlantic Ocean (12.11667°N, -63.53333°W) by GS U-558 . All 47 crew were rescued by MV Vilja (🇳🇴 Norway).
 * SS Empire Stevenson (🇬🇧 United Kingdom): World War II: Convoy PQ 18: The cargo ship was torpedoed and sunk in the Barents Sea off Bear Island, Norway (76.16667°N, 10.08333°W) by Luftwaffe aircraft.
 * SS John Penn (🇺🇸 United States): World War II: Convoy PQ 18: The Liberty ship was torpedoed and sunk in the Barents Sea (76°N, 10°W) by Luftwaffe aircraft.
 * MV Lima (1918) (🇸🇪 Sweden): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off the coast of Liberia (2.58333°N, -11.36667°W) by GS U-506 with the loss of three of her 33 crew.
 * SS Nimba (🇵🇦 Panama): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (10.68333°N, -60.4°W) by GS U-515 with the loss of twenty of her 32 crew. Survivors were rescued by USS Barney (DD-149).
 * SS Ocean Vanguard (🇬🇧 United Kingdom): World War II: The Ocean ship was torpedoed and sunk in the Atlantic Ocean (10.71667°N, -60.18333°W) by GS U-515 with the loss of eleven of her 51 crew. Survivors were rescued by MV Braga (🇳🇴 Norway).
 * SS Oliver Ellsworth (🇺🇸 United States): World War II: Convoy PQ 18: The Liberty ship was torpedoed and damaged in the Greenland Sea (76.16667°N, 10.08333°W) by GS U-408 with the loss of one of her 70 crew. Survivors were rescued by SS Copeland (🇬🇧 United Kingdom and HMT St. Kenan (FY264), which scuttled the ship.
 * Oregonian (🇺🇸 United States) Convoy PQ 18: The cargo ship was torpedoed and sunk in the Barents Sea off Bear Island, Norway (76°N, 9.5°W) by Luftwaffe aircraft.
 * SS Patrick J. Hurley (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 950 nmi north east of Barbados (22.98333°N, -46.25°W) by GS U-512 with the loss of seventeen of her 62 crew. Survivors were rescued by SS Etna (🇸🇪 Sweden and SS Loch Dee (🇬🇧 United Kingdom).
 * SS Stalingrad (1932) : World War II: Convoy PQ 18: The cargo ship was torpedoed and sunk in the Greenland Sea (75.86667°N, 7.91667°W) by GS U-408 with the loss of 21 of her 88 crew. Survivors were rescued by Royal Navy minesweepers.
 * SS Stone Street (🇵🇦 Panama): World War II: Convoy ON 127: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean (48.3°N, -39.71667°W) by GS U-594 with the loss of thirteen of her 52 crew. Survivors were rescued by SS Irish Larch (1903) (🇮🇪 Ireland).
 * SS Suriname (1930) (🇳🇱 Netherlands): World War II: Convoy TAG 5: The cargo ship was torpedoed and sunk in the Caribbean Sea (12.11667°N, -63.53333°W) by GS U-558 with the loss of thirteen of her 82 crew. Survivors were rescued by a United States Navy ship.
 * MV Vilja (🇳🇴 Norway): World War II: Convoy TAG 5: The tanker was torpedoed and damaged in the Caribbean Sea (12.25°N, -62.86667°W) by GS U-558 . The 34 crew abandoned ship but later reboarded her and sailed to Port of Spain, Trinidad, rescuing the survivors from MV Empire Lugard (🇬🇧 United Kingdom) on the way. Vilja reached New Orleans, Louisiana on 16 January 1943 and was declared a constructive total loss. She was scrapped in July 1944.
 * Wacosta (🇺🇸 united states): Convoy PQ 18: The 5,432 grt freighter was in a convoy from Philadelphia to Archangel with a cargo of war materials when she was sunk by German torpedo bombers south of Spitsbergen

14 September

 * ITALIAN SUBMARINE Alabastro : World War II: The Acciaio-class submarine submarine was sunk off Algiers, Algeria  (37.46667°N, 4.56667°W) by a Sunderland of 202 Squadron.
 * MV Atheltemplar (🇬🇧 United Kingdom): World War II: Convoy PQ 18: The tanker was torpedoed and damage in the Greenland Sea south of Bear Island, Norway by GS U-457 with the loss of three of her 61 crew. Survivors were rescued by SS Copeland (🇬🇧 United Kingdom) and HMS Offa (G29) . HMS Harrier (J71) ( attempted to scuttle the ship, but was unsuccessful. Atheltemplar was later shelled and sunk at 76.16667°N, 18°W by GS U-408.
 * HMS Coventry (D43) : World War II: Operation Agreement: The C-class cruiser was bombed and damaged in the Mediterranean Sea north west of Alexandria, Egypt, by Junkers Ju 87 aircraft of the Luftwaffe. She was scuttled by HMS Zulu (F18).
 * SS Harborough (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 40 nmi east of Galera Point, Trinidad (10.05°N, -60.33333°W) by GS U-515 with the loss of five of her 50 crew.
 * HMML 351 and HMML 352 (both ): World War II: Operation Agreement: The Fairmile B class Motor Launches were shelled and sunk in the Mediterranean Sea off Tobruk, Libya by German shore-based artillery.
 * MTB 308, MTB 310 and MTB 312 (all ): World War II: Operation Agreement: The ELCO 77'-class Motor Torpedo Boats were bombed and sunk in the Mediterranean Sea by Luftwaffe, or Italian, aircraft.
 * HMS MTB 314 (MTB314) : World War II: The ELCO 77'-class Motor Torpedo Boat was ran aground and abandoned, possibly sunk, off Tobruk. Salvaged by the Germans and put in Kriegsmarine service as RA-10.
 * HMCS Ottawa (H60) (: World War II: Convoy ON 127: The C-class destroyer was torpedoed and sunk in the Atlantic Ocean (47.91667°N, -43.45°W) by GS U-91 (1941) with the loss of 114 of her 183 crew.
 * HMS Sikh (F82) : World War II: Operation Agreement: The Tribal-class destroyer was shelled and sunk in the Mediterranean Sea off Tobruk with the loss of 115 of her 190 crew.
 * GS U-589 : World War II: The Type VIIC submarine was depth charged and sunk in the Arctic Ocean by a Fairey Swordfish aircraft of 825 Squadron, Fleet Air Arm based on HMS Avenger (D14) and also by HMS Onslow (G17) (both ) with the loss of all 44 crew.
 * HMS Zulu (F18) : World War II: Operation Agreement: The Tribal-class destroyer was bombed and damaged in the Mediterranean Sea off Tobruk by Macchi C.200 aircraft of the Regia Aeronautica. She sank the next day.

15 September

 * SS Boston Maru (🇯🇵 Japan): World War II: The cargo ship collided with USS Seal (SS-183) in the Pacific Ocean off Palau and sank.
 * SS Breedijk (🇳🇱 Netherlands): World War II: The cargo ship was torpeoded and sunk in the Atlantic Ocean (-5.08333°N, -8.9°W) with the loss of two of the 52 people on board. Survivors were rescued by SS Cubango (🇵🇹 Portugal, Royal Navy vessels or reached land in their lifeboats.
 * SS Inger Elisabeth (1920) (🇳🇴 Norway): World War II: Convoy SQ 36: The cargo ship was torpedoed and sunk in the Atlantic Ocean 4 nmi off Cap-des-Rosiers, Quebec, Canada (48.81667°N, -64.1°W) by GS U-517 with the loss of three of her 26 crew.
 * SS Kioto (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and damaged in the Atlantic Ocean east of Tobago (11.08333°N, -60.76667°W) by GS U-514 . She went aground at Columbus Point. U-514 shelled her the next day and she burnt out with the loss of twenty of her 74 crew. Survivors were rescued by SS Trinidad (1931) (Trinidad colonial 1889-1958.gif Trinidad).
 * USS O'Brien (DD-415) : World War II: The Sims-class destroyer was torpedoed and damaged in the Pacific Ocean near Guadalcanal by JAPANESE SUBMARINE I-19 . She sank on 19 October between Suva, Fiji and Pago Pago, American Samoa due to damage inflicted. All crew were rescued.
 * SS Saturnus (🇳🇱 Netherlands): World War II: Convoy SQ 36: The cargo ship was torpedoed and sunk in the Gulf of St. Lawrence 4 nmi off Cap-des-Rosiers (48.81667°N, -64.1°W) by GS U-517 with the loss of one of her 36 crew.
 * SS Sonderberg (🇩🇪 Germany): World War II: The factory ship was bombed and severely damaged at Cherbourg, Seine-Maritime, France by Douglas Boston aircraft of 107 Squadron, Royal Air Force. Gutted by fire, she was subsequently scuttled as a blockship in June 1944. The wreck was dispersed by explosives in January 1947.
 * MV Sørholt (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (10.75°N, -60°W) by GS U-515 with the loss of seven of the 38 people on board. Survivors were rescued by Royal Navy Motor Torpedo Boats.
 * GS U-261 : World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean west of the Shetland Islands, United Kingdom (59.83333°N, -9.46667°W) by an Armstrong Whitworth Whitley aircraft of 58 Squadron, Royal Air Force with the loss of all 43 crew.
 * USS Wasp (CV-7) : World War II: The Wasp-class aircraft carrier was torpedoed and damaged in the Pacific Ocean near Guadalcanal, Marshall Islands by I-19 with the loss of 193 of her 2,167 crew. She was scuttled by USS Lansdowne (DD-486).

16 September

 * SS Commercial Trader (🇺🇸 United States): World War II: The Design 1099 cargo ship was torpedoed and sunk in the Atlantic Ocean 75 nmi east of Trinidad (10.5°N, -60.25°W) by GS U-558 with the loss of ten of her 38 crew.
 * SS Joannis (🇬🇷 Greece): World War II: Convoy SQ 36: The cargo ship was torpedoed and sunk in the Gulf of Saint Lawrence (49.16667°N, -67.08333°W) by GS U-165 (1941) . All 32 crew survived.
 * HMS Talisman (N78) : World War II: The T-class submarine struck a mine and sank in the Sicilian Passage with the loss of all 63 crew.
 * GS U-457 : World War II: The Type VIIC submarine was depth charged and sunk in the Barents Sea (75.08333°N, 43.25°W) by HMS Impulsive (D11) with the loss of all 45 crew.

17 September

 * SS Carbonia ( undefined): World War II: The cargo ship was bombed and sunk in the Mediterranean Sea, 4 nmi off Hammamet, Tunisia.
 * ITALIAN AUXILIARY SUBMARINE CHASER V-39 Giovanna : World War II: The auxiliary sub chaser was sunk with gunfire by HMS United (P44) off Misurata, Libya.
 * SS Karpfanger (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk by aircraft south of Egersund, Norway.
 * SS Mae (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 41 nmi north of Georgetown, British Guiana (8.05°N, -58.21667°W) by GS U-515 with the loss of one of her 41 crew. Survivors were rescued by SS Gypsum King (🇬🇧 United Kingdom and SS Sørvangen (🇳🇴 Norway).
 * SS Peterton (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west of the Cape Verde Islands, Portugal (18.75°N, -29.25°W) by GS U-109 (1940) with the loss of nine of her 43 crew. Survivors were rescued by HMS Canna (T161)  and SS Empire Whimbrel (🇬🇧 United Kingdom).
 * SS Rostro (1917) ( undefined): World War II: The salvage vessel was sunk with gunfire by HMS United (P44) off Zliten, Libya.
 * HMT Waterfly : World War II: The naval trawler was bombed and sunk in the English Channel off Dungeness, Kent by Axis aircraft.

18 September

 * Kentucky (🇺🇸 united states) Convoy PQ 18: The 5,446 grt freighter was attacked by German aircraft and sunk by aerial torpedo
 * SS Norfolk (1923) (🇨🇦 Canada): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean north east of Georgetown, British Guiana (8.6°N, -59.33333°W) by GS U-175 with the loss of six of her nineteen crew. Survivors were rescued by SS Indaucha (🇪🇸 Spain).
 * MV Olaf Fostenes (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (44.93333°N, -41.08333°W) by GS U-380 . All 36 crew were rescued by HMS Firedrake (H79) (

19 September

 * HMS Alouette (FY101) : World War II: The naval trawler was torpedoed and sunk in the Atlantic Ocean 10 nmi west of Cape Espichel, Portugal by GS U-552 with the loss of seventeen of her 44 crew.
 * MV Monte Gorbea (🇪🇸 Spain): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 60 nmi east of Martinique (14.91667°N, -60°W) by GS U-512 with the loss of 52 of the 77 people on board.
 * HMS Pentland Firth (FY108) : World War II: The naval trawler was sunk in the Atlantic Ocean off of the Ambrose Lightship off Sandy Hook, New Jersey (40.41667°N, -73.91667°W) in a collision with USS Chaffinch (AM-81).
 * SS Quebec City (1927) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (-2.2°N, -17.6°W) by GS U-156 (1941) with the loss of five of her 46 crew. Survivors were rescued by HMS Decoy (H75).
 * SS Shirogane Maru : World War II: The Kogane Maru Class transport was torpedoed and damaged in the Bougainville Strait, 11 miles east of Lulaui Point, Bouganville (-6.55°N, 156.08333°W) by USS Amberjack (SS-219) . 3 crewmen killed. Towed to Buin and beached on 20 September. Abandoned on 16 October 1942.
 * MV Wichita (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 300 nmi north east of Barbados by GS U-516 with the loss of all 50 crew.

20 September

 * SS Empire Hartebeeste (🇬🇧 United Kingdom): World War II: Convoy SC 100: The Design 1013 cargo ship was torpedoed and sunk in the Atlantic Ocean (56.33333°N, -38.16667°W) by GS U-596 . All 46 crew were rescued by SS Norhauk and MV Rio Verde (1924) (both 🇳🇴 Norway).
 * HMS Leda (J93) : World War II: The Halcyon-class minesweeper was torpedoed and sunk in the Greenland Sea south west of Spitsbergen, Norway by GS U-435  with the loss of 45 crew, whilst providing escort duties for Convoy QP 14. Survivors were rescued by SS Rathlin and SS Zamalek (both 🇬🇧 United Kingdom).
 * SS Reedpool (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 240 nmi south east of Trinidad (8.96667°N, -57.56667°W) by GS U-515 with the loss of five of the 58 people on board. Survivors were rescued by  Millie M. Masher (🇬🇧 United Kingdom).
 * SS Silver Sword (🇺🇸 United States): World War II: Convoy QP 14: The cargo ship was torpedoed and sunk in the Greenland Sea (75.86667°N, -0.33333°W) by GS U-255 with the loss of one of her 64 crew. Survivors were rescued by SS Rathlin and SS Zamalek (both 🇬🇧 United Kingdom).
 * HMS Somali (F33) : World War II: Convoy PQ 18: The Tribal-class destroyer was torpedoed and damaged in the Greenland Sea (74.66667°N, -2°W) by GS U-703 . She was taken under tow by HMS Ashanti (F51), but broke her back and sank four days later at 69°N, -15.5°W) with the loss of 67 of the 105 people on board.

21 September

 * ITALIAN AUXILIARY MINESWEEPER Aquila N 10 : World War II: The auxiliary minesweeper was torpedoed and sunk in the Mediterranean Sea by HMS Unruffled (P46) off Tunisia.
 * JAPANESE SHIP Koei Maru : World War II: The net tender was torpedoed and sunk in the Pacific Ocean south of Truk South Pacific Mandate (6.9°N, 151.85°W) by USS Trout (SS-202).
 * SS Predsednik Kopajtic ( undefined): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (8.5°N, -59.5°W) by GS U-175 with the loss of three of her 31 crew.
 * HMS St. Olaves (W40) : World War II: The Saint-class tug was wrecked off Duncansby Head, Scotland.
 * SS Tone Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea, east of Shanghai, China (31.3°N, 123.45°W) by USS Grouper (SS-214).
 * GS U-446 : World War II: The Type VIIC submarine struck a mine and sank in the Gulf of Danzig off Kahlberg, East Prussia. She was raised on 8 November, repaired and returned to service.

22 September

 * SS Bellingham (🇺🇸 United States): World War II: Convoy QP 14: The cargo ship was torpedoed and sunk in the Greenland Sea west of Jan Mayen, Norway (71.38333°N, -11.05°W) by GS U-435 . All 75 crew were rescued by SS Rathlin (🇬🇧 United Kingdom) or the convoy's escort ships.
 * SS Esso Williamsburg (🇺🇸 United States): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean 500 nmi south of Cape Farewell, Greenland (53.2°N, -41°W) by GS U-211 with the loss of all 60 crew. The drifting wreck was torpedoed and sunk on 3 October at 55°N, -33°W by GS U-254.
 * RFA Grey Ranger : World War II: Convoy QP 14: The Ranger-class tanker was torpedoed and sunk in the Greenland Sea west of Jan Mayen (71.38333°N, -11.05°W) by GS U-435 with the loss of six of her 39 crew. Survivors were rescued by SS Rathlin (🇬🇧 United Kingdom).
 * JAPANESE TRANSPORT Kano Maru : World War II: The Transport was torpedoed and damaged by USS Grunion (SS-216), with only one of three torpedoes that hit actually detonating, off Kiska, Alaska, on July 31, 1942. She was towed to Kiska Harbor, and remained there until she was washed ashore and wrecked by a storm on 22 September 1942 1 1/2 miles south west of Kiska Harbor.
 * SS Ocean Voice (🇬🇧 United Kingdom): World War II: Convoy QP 14: The 7,174 grt Ocean ship was torpedoed and sunk in the Greenland Sea (71.38333°N, 11.01667°W) by GS U-435 . All 89 people on board were rescued by HMS Seagull (N85) and SS Zamalek (🇬🇧 United Kingdom).

23 September

 * MV Athelsultan (🇬🇧 United Kingdom): World War II: Convoy SC 100: The tanker was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell, Greenland (58.7°N, -33.63333°W) by GS U-617 with the loss of 51 of her 61 crew. Survivors were rescued by HMS Nasturtuim (K107)  and HMCS Weyburn (K173).
 * SS Bruyère (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 250 nmi south west of Freetown, Sierra Leone (4.91667°N, -17.26667°W) by GS U-125 (1940) . All 51 crew were rescued by HMS Decoy (H75), HMS Petunia (K79) and HMT Sir Wistan (4.105) (all ).
 * SS Lindvangen (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (9.33333°N, -60.16667°W) by GS U-515 with the loss of fifteen of her 23 crew. Survivors were rescued by HMS Helene.
 * SS Tennessee (1921) (🇬🇧 United Kingdom): World War II: Convoy SC 100: The cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell (58.66667°N, -33.68333°W) by GS U-617 with the loss of fifteen of her 35 crew. Survivors were rescued by USCGC Ingham (WPG-35)  and HMS Nasturtium (K107).
 * MV Vibran (1935) (🇳🇴 Norway): World War II: The refrigerated cargo ship was torpedoed and sunk in the Atlantic Ocean (42.75°N, -42.75°W) by GS U-582 with the loss of all 56 people on board.

24 September

 * SS Antinous (1920) (🇺🇸 United States): World War II: The cargo ship was torpedoed and damaged in the Atlantic Ocean south east of Trinidad (8.96667°N, -59.55°W) by GS U-515 (. She was abandoned by her 48 crew but was later reboarded. She was taken in tow by HMS Zwarte Zee (W163) but was torpedoed and sunk on 25 September by GS U-512 . All crew survived and were rescued by HMS Zwarte Zee.
 * SS John Winthrop (🇺🇸 United States): World War II: Convoy ON 131: The Liberty ship straggled behind the convoy. She was torpedoed, shelled and sunk in the Atlantic Ocean (56°N, -31°W) by GS U-619 with the loss of all 52 crew.
 * SS Penmar (🇺🇸 United States): World War II: Convoy SC 100: The cargo ship straggled behind the convoy due to damaged steering gear. She was torpedoed and sunk in the Atlantic Ocean (58.2°N, -34.58333°W) by GS U-432 with the loss of two of her 62 crew. Survivors were rescued by USCGC Bibb (WPG-31).
 * SS Roumanie (🇧🇪 Belgium): World War II: Convoy SC 100: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean (58.16667°N, -28.33333°W) by GS U-617 with the loss of 42 of her 43 crew. The survivor was taken on board U-617 as a prisoner of war.
 * Sphinx (🇪🇬 Egypt): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea off Tiros, Lebanon by GS U-561.
 * SS West Chetac (🇺🇸 United States): World War II: The Design 1013 cargo ship was torpedoed and sunk in the Atlantic Ocean 100 nmi north of Georgetown, British Guiana (8.75°N, -57°W) by GS U-175 with the loss of 31 of her 50 crew. Survivors were rescued by USS Roe (DD-418).

25 September

 * SS Boston (1924) (🇬🇧 United Kingdom): World War II: Convoy RB 1: The passenger ship was torpedoed and sunk in the Atlantic Ocean east of Cape Farewell, Greenland (53.38333°N, -27.9°W) by GS U-216 . All 65 crew were rescued by HMS Veteran (D72).
 * SS Empire Bell (🇬🇧 United Kingdom): World War II: Convoy UR 42: The cargo ship was torpedoed and sunk in the Atlantic Ocean (62.31667°N, -15.45°W) by U-442 ( with the loss of ten of her 41 crew. Survivors were rescued by SS Lysaker IV (🇳🇴 Norway).
 * SS Navigator (🇫🇮 Finland): World War II: The cargo ship struck a mine and sank in the Baltic Sea off Trelleborg, Sweden.
 * SS Teibo Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed, shelled and sunk in the South China Sea east of Saigon, French Indochina (10.51667°N, 109.51667°W) by USS Sargo (SS-188).
 * GS U-253 : World War II: The Type VIIC submarine struck a mine and sank in the Atlantic Ocean north west of Iceland (67°N, -23°W) with the loss of all 45 crew.
 * SS Vledderveen (🇳🇱 Netherlands): World War II: The cargo ship struck a mine and sank in the Öresund.
 * HMAS Voyager (D31) : World War II: The W class destroyer ran aground off Timor (-9.25°N, 125.75°W) on the 23rd. Discovered by the Japanese on the 24th and bombed beyond repair under the circumstances. Scuttled on the 25th. Crew rescued by HMAS Kalgoorlie and HMAS Warrnambool (J202) (both ).

26 September

 * JAPANESE SUBMARINE I-33 : World War II: The B1 type submarine sank at Truk due to a loss of buoyancy from a bungled retrimming attempt while being repaired. 33 crewmen killed. Raised 29 December, 1942. Towed to Kure for repairs in March, 1943. Repairs finished 1 June, 1944. She sank again in the Iyo Nada near Kure, Japan during diving trials 16 June, 1944.
 * SS New York (1924) (🇬🇧 United Kingdom): World War II: Convoy RB 1: The passenger ship was torpedoed and sunk in the Atlantic Ocean (54.56667°N, -25.73333°W) by GS U-91 (1941) with the loss of all 64 crew.
 * SS Tambour (🇵🇦 Panama): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (8.83333°N, -59.83333°W) by GS U-175 with the loss of eight of her 32 crew. Survivors were rescued by MV Thalatta (🇳🇴 Norway).
 * HMS Veteran (D72) : World War II: Convoy RB 1: The V-class destroyer was torpedoed and sunk in the Atlantic Ocean by GS U-404 with the loss of all 134 crew, and 63 of the 65 survivors from SS Boston (1920) (🇬🇧 United Kingdom). The two survivors from Boston were rescued by SS New Bedford''' (🇺🇸 United States).
 * SS Yorktown (1928) (🇬🇧 United Kingdom): World War II: Convoy RB 1: The cargo ship was torpedoed and sunk in the Atlantic Ocean 550 nmi west of the Butt of Lewis (55.16667°N, -18.83333°W) by GS U-619 with the loss of eighteen of her 60 crew. Survivors were rescued by HMS Sardonyx (H26).

27 September

 * GERMAN PATROL BOAT Gazelle : The patrol boat collided with SS Themis (1919), (🇳🇴 Norway) and sank off Lervik, Norway.
 * SS Stephen Hopkins (🇺🇸 United States): World War II: The Liberty ship and GERMAN AUXILIARY CRUISER Stier shelled and sank each other in the South Atlantic Ocean (-28.13333°N, -11.98333°W). Survivors reached Brazil in lifeboats a month later, between the battle and the month long ordeal, 32 of 40 crewmen and 9 of 15 Naval Armed Guards die.
 * GERMAN AUXILIARY CRUISER Stier The auxiliary cruiser and SS Stephen Hopkins (🇺🇸 United States) shelled and sank each other in the  South Atlantic Ocean (-28.13333°N, -11.98333°W). 2 crewmen killed. Survivors were rescued by MS Tannenfels (1938).
 * GS U-165 (1941) (: World War II: The Type IXC submarine was depth charged and sunk in the Bay of Biscay (47°N, -5.5°W) by a Vickers Wellington aircraft of 311 Squadron, Royal Air Force with the loss of all 51 crew.

28 September

 * SS Alcoa Mariner (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 20 nmi off the mouth of the Orinoco River, Venezuela (8.95°N, -60.13333°W) by GS U-175 . All 54 crew were rescued by MV Turret Cape (🇨🇦 Canada).
 * SS Antonico (🇧🇷 Brazil): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off the mouth to the Marowijne River (5.5°N, -53.5°W) by GS U-516 with the loss of sixteen of her 40 crew.
 * SS Lages (🇧🇷 Brazil): World War II: The cargo ship was torpedoed and sunk in the Amazon Estuary 75 nmi north of Salinas (0.21667°N, -47.78333°W) by GS U-514 with the loss of three of her 49 crew. She was salvaged, repaired and returned to service post-war.
 * SS Ozório (🇧🇷 Brazil): World War II: The Design 1074 cargo ship was torpedoed and sunk in the Amazon Esturary 75 nmi north of Salinas (0.05°N, -47.75°W) by GS U-514 with the loss of five of her 39 crew. She was salvaged, repaired and returned to service post-war.

29 September

 * SS Baron Ogilvy (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of Cape Palmas, Liberia (2.5°N, -14.5°W) by GS U-125 (1940) with the loss of eight of her 40 crew. Survivors were rescued by SS Mouzhino (🇵🇹 Portugal).
 * SS Empire Avocet (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Liberia (4.08333°N, -13.38333°W) by U-125 with the loss of two of her 56 crew. Two survivors were taken on board U-125 as prisoners of war, the rest were rescued by HMS Cowslip (K196).
 * SS Empire Wildebeeste (🇬🇧 United Kingdom): World War II: Convoy SC 100: The cargo ship was torpedoed and sunk in the Atlantic Ocean (56.33333°N, -38.16667°W) by GS U-596.
 * SS Lifland (🇬🇧 United Kingdom): World War II: Convoy SC 101: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean (56.66667°N, -30.5°W) by GS U-608 with the loss of all 29 crew.
 * HMS Registan (F106) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 140 nmi off Barbados (12.61667°N, -57.16667°W) by GS U-332 with the loss of sixteen of her 54 crew. Survivors were rescued by SS Rio Neuquen (🇦🇷 Argentina).

30 September

 * SS Alipore (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed, shelled and sunk in the Atlantic Ocean north east of Georgedtown, British Guiana (7.15°N, -54.38333°W) by GS U-516 with the loss of ten of her 83 crew. Survivors were rescued by the fishing schooner United Eagle ( British Guiana).
 * SS Amiral Pierre (1905) (🇫🇷 Vichy France): World War II: Battle of Madagascar: The cargo ship was intercepted in the Indian Ocean off Madagascar by HMAS Nizam (G38) and was scuttled.
 * SS Kumsang (🇬🇧 United Kingdom): World War II: The passenger ship was torpedoed and sunk in the Atlantic Ocean 300 nmi south of Freetown, Sierra Leone (4.11667°N, -13.66667°W) by GS U-125 (1940) with the loss of four of the 114 people on board.
 * HMS MGB 18 (MGB18) : World War II: The BPB 70'-class Motor Gunboat was shelled and sunk by Kriegsmarine serface ships off Terschelling, The Netherlands.
 * MV Siam II (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and damaged in the Atlantic Ocean south west of Monrovia, Liberia (3.41667°N, -15.76667°W) by GS U-506 . She was sunk by a coup de grâce in the early hours of 1 October. All 39 crew were rescued by SS Nagpore (🇬🇧 United Kingdom).

Unkown Date

 * SOVIET SUBMARINE M-60 : World War II: The M-class submarine was lost, probably to a mine, in the Black Sea off Odessa sometime between 23–26 September.
 * ITALIAN SUBMARINE Smeraldo : World War II: The Sirena-class submarine was lost in the Mediterranean Sea. Last report was received on the 16th off Sollum.