At least 14 people have been killed and around 40 injured in a suspected suicide bomb attack on a bus in Jerusalem. The blast took place at 0800 local time (0500 GMT) during morning rush hour at a crowded intersection in the southern Pat district. The bus was full of schoolchildren and office workers. "There was a huge explosion, smoke and pieces of the bus and body parts were flying everywhere. It was horrible," a witness told Israel Army Radio. Jerusalem police chief Mickey Levy said the bus, from Gilo, was ripped apart by the force of the explosion.