BAGHDAD (Reuters) - A suicide bomber killed at least seven people and wounded 10 more, mostly Iraqi policemen, as they were investigating a car bombing north of Baghdad, an Iraqi Interior Ministry source said on Sunday.
The police were attacked after the car bomb exploded in Taji, 20 kilometres north of the capital.
Violence in Iraq has dropped sharply since the height of sectarian conflict four years ago, but bombings and other attacks are carried out daily by a weakened but stubborn Sunni Islamist insurgency and Shi'ite militias.
Iraqi security forces and police are often targeted by insurgents. Three bombs near a police station killed 27 people in the disputed oil city of Kirkuk on Thursday.
(Reporting by Baghdad newsroom)
