Afghan officials say Taliban insurgents have attacked a U.S.-run base in southern Afghanistan.

At least three armed militants fired shots at the base from a nearby office building in Kandahar province on Thursday. The interior ministry said two of the attackers were later killed by security forces.

A NATO spokesman confirmed the attack and said there were no coalition fatalities. At least one Afghan soldier was reportedly wounded.

Troops also found vehicles packed with explosives parked near the base.

The road to the base has been blocked. Witnesses reported hearing gunfire and blasts as security forces worked to repel the attack.

The Taliban claimed responsibility for Thursday's assault.