A police officer says one bomber detonated his explosives-laden belt at the main checkpoint outside police headquarters in the central city of Fallujah today morning.
The second bomber blew himself up near the building gates as security forces engaged in a shootout with the gunmen, who later fled the scene. The attack also wounded nine policemen.
A medical official confirmed the causality figures. Both officials spoke on condition of anonymity because they were not authorised to talk to media.