FIVE people were killed on Wednesday and six were injured when gunmen attacked a bus in the north of the Somali capital, Mogadishu. The gunmen sprayed the bus with bullets without warning at the north Mogadishu Sana bus station, according to the witness, who was among the passengers. Among those killed was a wealthy businessman, Mohamed Hassab Ali, and his sister, a relative said. Four of the wounded were taken to the Keysaney main hospital, while others were treated at a nearby pharmacy for slight injuries, reliable reports said. The attackers were members of Matan Abdulle, an Abgal subclan, according to a militia source who asked not to be named for security reasons.