President Barack Obama has condemned the killing of US ambassador and three American officials.
It was not clear if the ambassador was in his car or the Libyan consulate when the attack occurred.
"The Libyan ambassador and three staff members were killed when gunmen fired rockets at them‚" the official in Benghazi told Reuters.
President Barack Obama has condemned the killing of US ambassador and three American officials in Libya.
He ordered increased security at US diplomatic posts around the world.
US Secretary of State Hillary Clinton has also strongly condemned the attack on US mission in Benghazi‚ Libya.
She said there is never any justification for violent acts of this kind. She said the US deplores any intentional effort to denigrate the religious beliefs of others. Our commitment to religious tolerance goes back to the beginning of our nation.