At least 14 people and possibly up to 10 more are reported to have been killed in fighting in Benghazi May 16 as forces led by Gen. Khalifa Hafter attacked an alliance of Islamist militias made up of the February 17 Brigade, Libya Shield No. 1 Brigade and Ansar al-Sharia. Gen. Hafter's attack on the militias was apparently not approved by the central government in Tripoli, which has disavowed it. Acting Prime Minister Abdullah al-Thinni condemned the operation as "a coup against the revolution." The fighting is the heaviest in Libya since the 2011 revolution. Eye-witnesses describe a city in chaos, with warplanes streaking low over rooftops, tanks on the streets, aerial bombardments and door-to-door combat. The February 17 Brigade claims to have shot down a helicopter used in the attacks. Fighting continues, with with all shops shut and the city virtually closed down—including the internet for much of the day, supposedly due to a short circuit. (Shabab Libya, Libya Herald, BBC News, May 16)