A SUICIDE bomber in a stolen ambulance killed 14 Iraqis overnight in an attack on a police post in an area controlled by Sunni tribes opposed to al-Qaeda. Omar al-Alwani, a doctor at Ramadi Hospital, said five police, three children, three civilian women and three local men were killed in the attack in the Albu Alwan area of the western city. The police post had been set up in a converted house at the heart of a residential area that has become a target for al-Qaeda insurgents since local tribal leaders formed a movement to oppose them. A local tribal leader and imam, Nafea Mohammed, was among the dead and seven more people were wounded, while the building collapsed completely, the medic said in Ramadi. On Saturday, in the nearby town of Habbaniyah, an al-Qaeda suicide bomber driving a fuel tanker attacked another district loyal to the anti-insurgent Anbar Salvation Front, killing 56 civilians. The recent attacks have raised fears of yet another front in Iraq's complex civil conflict, with rival Sunni armed groups fighting each other in the west, while elsewhere Sunni and Shiite factions are at war.