At least 13 people were killed in the attack on a checkpoint leading to the eastern gates of Libya 's second city , Benghazi , early Sunday , the government said . Three days of mourning to the first terrorist attacks since Gadhafi regime 's fall . Most of the dead were civilians and members of security forces , government officials . No group has claimed responsibility ; residents have protested rising Islamist violence .
Three days of mourning to the first terrorist attacks since Gadhafi regime 's fall . Most of the dead were civilians and members of security forces , government officials . No group has claimed responsibility ; residents have protested rising Islamist violence .