Iraqi police say a suicide truck bomber killed at least seven people and wounded 17 in the northern city of Mosul.
A police officer in Mosul says the attacker was targeting a police station in the city's center.
Police Maj. Jassim al-Jubouri says those killed include four policemen and three civilians.
Tuesday's bombing is the latest in a string of attacks in Iraq this month that has raised fears insurgents are trying to regroup as the US prepares to withdraw all its forces by the end of 2011.
Nobody has claimed responsibility for the attack. But vehicle bombings are the signature attacks of suspected Sunni insurgents who remain active in Mosul.