Four suicide car bombing attacks hit the Iraqi police and army forces in Baghdad and north of the country on Tuesday, killing at least 11 people and wounding at least 23 others, police said.

A suicide bomber detonated a booby-trapped vehicle into a police patrol as they were parking in front of a restaurant in Shulah district in northern Baghdad, a police source said on condition of customary anonymity.

The attack took place at about 10:00 a.m. (0600 GMT), killing a policeman and wounding four others, including a civilian, the source added.

Several cars were also damaged in the blast.

Earlier Tuesday morning, three suicide car bombs detonated successively at an Iraqi military checkpoint outside the northern Iraqi town of Hawija, south of Kirkuk, killing at least 10 people and wounding 19 others, police said, adding among the dead, some are Iraqi soldiers.

More than 700 people have been killed in Iraq since a new Iraqi government was announced in late April.

Source: Xinhua