A Western official says nine US soldiers have been killed in a multi-pronged insurgent attack on a remote American base in eastern Afghanistan. The attack appears to be the deadliest against US forces in Afghanistan in years. NATO's International Security Assistance Force says militants fired machine guns, rocket-propelled grenades and mortars from homes and a mosque in the village of Wanat in Kunar province, a mountainous region that borders Pakistan. The Western official says nine US soldiers have been killed. The official spoke on condition of anonymity because the deaths had not yet been officially announced.