The U.S. ambassador to Libya Chris Stevens was killed Wednesday morning (September 12) after protestors demonstrating against a film that depicted Islam's Prophet Mohammad attacked a U.S. consulate in the city of Benghazi.  Three other Americans died as well in the attack.

President Obama and Secretary of State Hillary Clinton have condemned the attacks and have bolstered security at other consulates around the world.

"While the United States rejects efforts to denigrate the religious beliefs of others, we must all unequivocally oppose the kind of senseless violence that took the lives of these public servants," Obama said in a statement.

According to the Associated Press, Stevens was killed when he and a group of embassy employees went to the consulate to try to evacuate staff as the building came under attack by a mob guns and rocket propelled grenades.

"We must be clear-eyed even in our grief. ... This was an attack by a small and savage group, not the people or government of Libya," said Clinton.

Stevens was 52 and had already served two tours in Libya, including a tour during the revolt against Moammar Kadafi and Hosni Mubarak.