A suicide car bomber hit a convoy of international soldiers in Kabul on Thursday, killing three Afghans caught up in the blast, police said. The attack targeted two armored SUVs, causing minor damage to the vehicles. Lt. Col. David Johnson, a spokesman for the US-led coalition, said none of the soldiers were wounded or killed. He didn't immediately know the nationalities of the troops. US troops in Humvees from a base on the outskirts of Kabul cordoned off the area shortly after the attack. The blast killed three Afghans and wounded four, police officer Mohammad Aslam said. Small shops line the road, and pedestrians frequently walk alongside the busy route.