Gunmen attacked a security forces headquarters in Libya’s eastern city of Benghazi early Friday, killing nine people and wounding 24, authorities said, blaming an Islamic extremist group allegedly behind the attack of a U.S. diplomatic post there. A security official said the attack started when dozens of gunmen opened fire with machine guns and mortars. The onslaught lasted for an hour, with the fighting heard miles away. Libyan commandos later arrived and fought the attackers, though the official said they suffered heavy casualties. A statement issued by the interim government and read by Cabinet spokesman Ahmed al-Amin put the death toll at nine people. Milad al-Zowi, a commando spokesman, said the dead were six army commandos and three police officers. Al-Zowe said that three soldiers and a police officer were missing after the battle. A local hospital official said some of the slain troops were […]