NATO spokeswoman Capt. Ebony Calhoun, confirmed Saturday an attack on an American base in eastern Afghanistan from militants trying to blast their way in with rocket-propelled grenades and a car bomb. No American deaths or injuries were reported and there was no significant damages to the facilities.

The base houses a provincial reconstruction team - a mix of military and international civilians who work to improve provincial governance, services and infrastructure.

According to provincial Police Chief Gen. Mohammad Qasim Jangalbagh, three of the men attacked on foot while a fourth detonated the explosives in a vehicle outside the gate. The blast hit two fuel tankers which were waiting to enter the base, killing the Afghan drivers inside, he said.

The four militants killed in the attack failed to breach the gate of the base in Panjshir province's Rakha district but were successful in hitting a security tower with a rocket propelled grenade.

Read ' Militants assault U.S. base in eastern Afghanistan ' by the Associated Press.