Gunmen from Benghazi with heavy weapons attacked Congress, sending lawmakers fleeing out a back door; several people were injured during the attack, which resulted in a postponement of the voting for a new prime minister. A suicide car bomber attacked the Saiqa special forces base in Benghazi, killing two special forces members and injuring two other people. A security official was found dead at Tripoli’s Mitiga airbase. Employees and security officials protested the continued closure of Sebha airport. On April 27, Ansar al Sharia in Libya released photos of an April 5 practice raid in Benghazi showing fighters waving the flag of the Islamic State of Iraq and the Sham.