A senior Iraqi police officer was killed on Wednesday by a bomb left outside the door of his house at Abu Ghraib, west of Baghdad, a police official in Anbar province said.
Colonel Shalal al-Zubay, deputy head of Abu Ghraib police, was blown up as he left home to go to work, the official said.
Explosions in and around Baghdad on Wednesday also wounded 20 people.
Five people including two soldiers were hurt when a "sticky" bomb attached to a car blew up near an army checkpoint in the Sunni north Baghdad neighbourhood of Adhamiyah.
A blast at Iskan in the west of the capital wounded seven people, and the interior ministry said a bomb targeting a police patrol in the northern district of Qahira injured four people, including two police officers.
At Mahmudiyah, south of Baghdad, a bomb on the main road wounded four civilians.