WASHINGTON-- The U.S. has named the group it says is behind the deadly consulate attacks in Libya two days ago.
A radical Islamic group called "Ansar al Sharia" is under investigation.
The name means "Supporters of Islamic Law" and U.S. officials describe it as an offshoot of al Qaida.
At least one of the attackers was photographed at the scene and Libyan officials claim to have already made at least one arrest.
Sources say the FBI would begin the investigation by interviewing the 30 American survivors of the attack, who are now at a U.S. military base in Germany.