ROKS Sokcho (PCC-778)

ROKS Sokcho (PCC-778) is a South Korean Pohang-class corvette of the Republic of Korea Navy (ROKN). It was in the vicinity at the time of the sinking of the ROKS Cheonan and is reported to have fired shots at a possible target that it identified at that time.

Armament
The ship's armament consists of:
 * Boeing RGM-84 Harpoon missiles
 * Two Otobreda 76 mm/62 compact guns (OTO Melara)
 * Two Breda 40 mm/70 guns
 * Six 12.75 in (324 mm) Mark 46 torpedoes
 * Twelve Mark 9 depth charges