Four people were killed, including three policemen, and seven injured in two roadside bomb attacks in Baghdad on Monday, an Interior Ministry source told Xinhua.
In western Baghdad, a roadside bomb struck a police patrol in Mansour district and badly damaged a police vehicle, killing three policemen aboard and wounding another, the source said on condition of anonymity.
Three passers-by were wounded by the blast which also damaged several nearby civilian cars, the source said.
In a separate incident, a roadside bomb ripped through Abu Dsheer neighborhood in southern the capital, killing a civilian and wounding three others, the source added.
Violence and sporadic high-profile bomb attacks continue in the Iraqi cities despite the dramatic decrease of violence over the past few years.