The U.S. Ambassador to Libya, Christopher Stevens was killed during militant attacks on the U.S. Consulate late Tuesday night.  The attacks are a response to a controversial film that depicted Prophet Mohammad as a fraud and a womanizer.

According to ABC news:

Nearly a dozen Americans were inside the consulate at the time, guarded only by Libyan security. For nearly 20 minutes the Libyan guards exchanged fire with the attackers, who hurled a firebomb inside.

The militants burned down at least one building in the attack. It's not clear whether Stevens was killed by smoke inhalation or was in a car, which may have been hit by a mortar, as he tried to escape.

Another American died from smoke inhalation during the attack. Two more individuals who worked with the Americans, possibly guards who were trying to get Stevens out of the area, were also killed.