Local authorities in Zabul province say the attacker was an Afghan police officer.
Sunday's attack comes one day after an Afghan policeman in southern Helmand province attacked British Troops.
The deadly attacks are the latest in a series of so-called “insider” attacks by Afghan forces against their international counterparts, threatening the military partnership between NATO and Kabul.
In another development, coalition officials said Sunday the insurgents who attacked a British military base in Afghanistan Friday, were dressed in U.S. Army uniforms and were armed with automatic rifles, rocket propelled grenade launchers and suicide vests.
The coalition says the 15 militants were organized into three teams and “executed a well-coordinated attack” against the airfield on Camp Bastion in Helmand province.
The alliance say the attackers destroyed six Harrier jets and “significantly damaged” two more. The terrorists also destroyed three coalition refueling stations and damaged six aircraft hangars.
International troops say they killed 14 Taliban and wounded one, who is in custody.
The Taliban has claimed responsibility for the attack. VoA.
The attack on Camp Bastion in Helmand province was not an example of an insider attack, JCS General Dempsey said.
"We pulled the intelligence string -- we and the Brits -- and the initial assessment is that it was a breach of the perimeter and there is no indication at this point that it was aided by anyone inside," he said. "It's really too soon to tell. We certainly need to continue to examine that."
Which is it General? Is it too early to tell if it involved insiders? Or is "not" an insider attack?