The U.S. ambassador to Libya and three embassy staff were killed as they rushed away from a consulate building in Benghazi, stormed by al Qaeda-linked gunmen blaming America for a film that they said insulted the Prophet Mohammad.
Gunmen had attacked and set fire to the U.S. consulate in the eastern city of Benghazi, the cradle of last year's uprising against Muammar Gaddafi's 42-year rule, late on Tuesday evening as another assault was mounted on the U.S. embassy in Cairo.
The California-born ambassador, Christopher Stevens, was trying to leave the consulate building for a safer location as part of an evacuation when gunmen launched an intense attack, apparently forcing security personnel to withdraw.
"The American ambassador and three staff members were killed when gunmen fired rockets in their direction," a Libyan official in Benghazi told Reuters. Airport sources said the bodies were due to be flown from Benghazi to Tripoli.
The attack was believed to have been carried out by Ansar al-Sharia, an al Qaeda-style Sunni Islamist group that has been active in Benghazi, a Libyan security official said. Witnesses said the mob also included tribesmen, militia and other gunmen.