An Iraqi policeman walks through the rubble of a police station in the northern Iraqi city of Mosul after it was attacked by a suicide car bomber June 26, 2005.

BAGHDAD, June 26 (Xinhuanet) -- A suicide bomber blew himself up at a police station in the northern city of Mosul on Sunday, killing four policemen and wounding six others, police said.

    The attack took place at about 2:00 p.m. (1000 GMT) when a man wearing an explosive belt sneaked into a police post outside the main hospital of Mosul city, and blew himself up, the police said.

    The latest suicide attack is the third within hours in Mosul, some 400 km north of Baghdad. It brought the total number of casualties to 24 killed, most of them were policemen and Iraqi soldiers.

    Iraqi police and security forces have been frequently under attack by insurgents who have attempted to cripple the Shiite-dominated government since its formation in late April. Enditem