Iraqi officials say gunmen have killed the head of the audit department in Kirkuk province. Aziz Rizqo Nisan was driving in the Domiz area of Kirkuk city when gunmen with silencers shot him at about 9 a.m. Sunday. His death was confirmed by Domiz police chief, Col. Anwar Qadir, and a statement from the national government's media office in Baghdad, according to a report of The Associated Press.