Afghan official: US troops kill 3 civilians amid attack

KABUL, Afghanistan (AP) - An Afghan official say U.S. troops opened fire after their convoy was attacked in eastern Nangarhar province, killing three civilians.

Attahullah Khogyani, spokesman for the provincial governor, says a convoy was en route to a mission Sunday night when it was struck by a roadside bomb. Khogyani says the troops reacted by opening fire, killing a father and two sons.

Douglas High, a spokesman for the NATO mission in Afghanistan, confirmed that a convoy transporting both U.S. and Afghan soldiers was struck by a roadside bomb and attacked with small arms fire.

High said in a statement that the soldiers returned fire in self-defense and there were no U.S. casualties.

"We have not received any official allegations of civilian casualties," High said.