Brak El-Shati airbase raid

On 18 May 2017, clashes broke out in Brak al-Shati airbase between the LNA and the forces of Misrata (aided by the |Benghazi Defense Brigades), and 141 people were killed, according to Benghazi-based LNA military spokesman, Ahmad al-Mismari. He also said that the casualties included 103 army soldiers and unspecified numbers of civilians. The LNA launched air strikes on militant sites near the area in retaliation.

Accusation of war crimes
Human Rights Watch accused the 13th brigade, officially falling under the authority of Government of National Accord, and Benghazi Defense Brigades militia of summary executions of both civilians and soldiers. 75 bodies that were received by local hospitals showed sign of execution by shot in the head, including two 15 year old boys. Attackers were shouting slogans of You apostates, you enemies of God as they were executing captured soldiers according to one survivor who has been interviewed by HRW.

Arab League decried the events as a "barbaric massacre". Egyptian ministry of foreign affairs declared the event as a terrorist attack. Envoys from China, France, Russia, United Kingdom and United States of America issued a joint statement in which they described summary executions of both military personnel and civilians.

Response
GNA Minister of Defense Al-Mahdi Al-Barghathi has been suspended by Prime Minister Fayez al-Sarraj following allegations of his involvement in attack. Barghathi denied involvement, stating that ministry never ordered attack.

On 20th May, after gathering of tribal elders in city of Sebha, southern tribes gave Misrata 13th battalion (former 3rd Force) 72 hours to vacate their main base at Sabha Air Base, threatening to destroy Misrata forces inside otherwise. Tribal elders declared all agreements with Misrata forces void and held them fully responsible for massacre at Brak al-Shati.

Libyan National Army in following days heavily bombarded Benghazi Defense Brigades bases in Jufra District and at Al Jufra Air Base where both 13th Misrata battalion and Benghazi Defense Brigades are based as part of their new "Martyrs of Brak al-Shati operation".

Presidency Council Vice-President Fathi Al-Mijabri has described the attack as a war crime and declared Benghazi Defense Brigades as terrorists, calling it an act of sabotage aimed at ending attempts of national reconciliation between authorities in East and West that in previous weeks saw multiple meetings between both parties.