At least 13 policemen have been killed in Iraq after a person blew up a vehicle packed with explosives near a police station in the city of Hilla, 100km south the capital, Baghdad, officials say.
Another 30 officers were wounded after the attacker drove his car into the entrance of the police headquarters while policemen were changing work shifts on Thursday.
A police official said the blast knocked over some of the concrete barriers that surround the building. Several nearby houses and shops were also seriously damaged.
Security forces cordoned off the blast site, prohibiting journalists from entering the area.
Hilla lies just beyond the edge of a confessionally mixed area south of Baghdad that was dubbed "triangle of death" during the bloodshed that peaked in Iraq in 2006 and 2007.
Violence is down in Iraq from its peak, but attacks remain common. A total of 211 Iraqis were killed in violence in April, according to official figures.
PHOTO CAPTION
Iraqi security forces stand guard at the scene of a car bomb attack in Baghdad, Iraq, Wednesday, May 4, 2011.
Al-Jazeera