Six Iraqi policemen were killed on Monday in three separate gun and bomb attacks in the northern Iraqi city of Mosul, local security sources told dpa.
The sources said an armed group "opened fire with light weapons equipped with silencers on a checkpoint in the New Mosul area, west of the city, resulting in the deaths of three of the policemen on duty there."
Another policeman was killed when unknown gunmen fired on a checkpoint in the Rifai area of Mosul - Iraq's third-largest city, located 400 kilometres north of the capital Baghdad.
Two more policemen were killed and a lieutenant colonel injured in a car bomb attack in the south of the city.
A Mosul police source told dpa that "an officer with the rank of lieutenant colonel was wounded and two policemen killed when an explosion was detonated in a car parked on the roadside in the village of Houd, south of Mosul."
A local tribal sheikh was also reported to have been injured when an explosion targeted his car in the area.
No group has yet claimed responsibility for the attacks.