NATO says a man dressed in an Afghan National Army uniform opened fire on coalition soldiers, leaving one dead.
The NATO statement says coalition forces returned fire killing the shooter Sunday in southern Afghanistan.
The shooting is the latest in a series of deadly attacks on international troops by gunmen wearing Afghan uniforms.
In other violence, NATO says one of its service members died in a bomb explosion in eastern Afghanistan Sunday. No details on the attack were released.
Elsewhere in the country, two Taliban commanders and three insurgents were killed in fighting Friday with security forces. A NATO statement says one of the men was a senior Taliban commander who planned and organized roadside bombings and other attacks against Afghan and coalition forces throughout Faryab province.
The other, a subordinate commander, was a Taliban judge who attempted to impose Taliban law and punishment on civilians in the area.