PHOTOS: Terror attack on Libya Foreign Ministry Headquarter; 3 killed

Gamaty added that emergency services and security forces were on the ground dealing with the situation, which he believed was under control./ Image tweeted by @thelibyatimes

One of the gunmen was believed to have been killed after an explosion was heard in the top floor of the building, politician Guma El-Gamaty who was in the area said. The blast triggered a fire. Image tweeted by @GlobalBattles