A suicide bomber rammed his car into an Iraqi police truck Tuesday, killing five policemen and three civilians in the northern oil city of Kirkuk, police said. The attack, which took place in a crowded downtown commercial area packed with people preparing for work, also wounded at least 11 people, many of them civilians, said Brig. Gen. Sarhat Qadir, the police spokesman in Kirkuk. The blast burnt three cars and damaged several shops along the street. A roadside bomb exploded near an army patrol on the other side of the city at the same time as the suicide attack, but there were no casualties, said Qadir.