Heavily armed gunmen stormed a luxury hotel in Tripoli favored by Libyan officials and visiting delegations on Tuesday, killing at least nine people, including foreigners, before blowing themselves up with a grenade.
Officials said shooting erupted inside the five-star Corinthia Hotel and security forces evacuated guests, including Tripoli's prime minister and an American delegation, after at least two gunmen blasted through the building's reception.
It was one of the worst assaults targeting foreigners since the 2011 civil war that ousted Muammar Gaddafi and fractured the oil-producing North African state into fiefdoms of rival armed groups with two national governments, both claiming legitimacy.
Militants claiming ties with the so-called Islamic State in Iraq and Syria said in a Twitter message they were responsible for the attack, which they said was revenge for the death in the United States of a suspected Libyan al Qaeda operative.
But Tripoli officials who have set up their own self-proclaimed government blamed Gaddafi loyalists bent on killing their prime minister, who was at the hotel, and said he was rescued without injury.
"The attackers opened fire inside the hotel," Omar Khadrawi, head of Tripoli security said. "When the attackers were completely surrounded by the security forces, one of them detonated a grenade, but we don't know if it was deliberate."
Tripoli security spokesman Essam Naas told later that an American and a Frenchman were among five foreigners killed. He said the other foreigners who died at the hotel were Asian but gave no nationalities.
The American who was killed was a security contractor working for Virginia-based Crucible LLC, said Alan John, an executive of the company. He said the name of the contractor was not being released at this time and gave no other details.
A security officer was also killed in the clashes and three guards died when the attackers set off a car bomb in the car park outside the hotel.
Most foreign governments closed their embassies and pulled staff out of Tripoli after factional fighting erupted in the capital last summer. But some diplomats, business and trade delegations still visit the capital.