BAGHDAD - A roadside bomb killed three policemen in Diyala province of central Iraq while a bomb inside a minibus in Baghdad left at least two people dead on Saturday, security and medical sources said.

The roadside bomb exploded as a police patrol passed by in Khan Bani Saad, a town south of Baquba, the capital of Diyala, a police major said.

Dr Ahmed Ibrahim of Baquba general hospital confirmed the toll, saying the hospital had received the bodies of three policemen. A medical source at Ibn al-Nafis hospital said it had received two bodies and eight wounded people, including two women and a child, after a bomb blast on a minibus in the Karrada area of central Baghdad.

An interior ministry official put the toll at three dead and two wounded.

Violence is down from its peak in 2006 and 2007, but attacks remain common, killing 112 Iraqis in March.