BBC Report
Four are known to have died and 23 were wounded by a powerful suicide car bomb near a US military convoy in Baghdad.
Police chief Mizhir Mohammed Youssef was shot dead by unknown gunmen who ambushed his car in western Baghdad as he drove to work at Abu Ghraib police station, officials said
Two finance ministry employees were shot dead in Baghdad by gunmen on their way to work, an interior ministry official said
There were reports of five civilians killed as gunmen ambushed their car elsewhere in Baghdad
In the town of Baquba, 50km (30 miles) north-east of Baghdad, a car bomb blew up near an Iraqi police patrol, killing a policeman and a child
The head of Khaluss hospital in Baquba, Dr Abdul Muhsin Ali, was reportedly shot dead by gunmen as he left a health conference.