Car bomb kills four in northern Iraq

A police official says a car bomb has killed four policemen and wounded three others in northern Iraq.

The official says Thursday's attack targeted a police patrol in the city of Mosul and the wounded included one policeman and two civilians.

The official spoke on condition of anonymity because he was not authorised to talk to the media.

Mosul has experienced a string of attacks in recent days, including a suicide car bombing on Monday that killed four U.S. soldiers.