At least seven people were killed in a suicide car bomb attack in Afghan capital Kabul targeting a foreign logistics company supplying NATO forces.

According to police, four Nepali guards, one Afghan guard and two Afghan civilians were reported killed in the bombing.

Police Chief Salangi said that attack started with a suicide bomb carried in a large truck, and then two or three insurgents engaged guards with gunfire for 30-40 minutes.

The blast left a large crater in the ground and all the assailants were killed, he said.