A suicide bombing in a village north of Baghdad killed at least two policemen on Thursday, according to Iraqi officials cited by Agence-France Press.
The mayor of the village of Tuz Khormato told AFP the car bomb attack injured 15 civilians and four officers.
Also Thursday, according to China's Xinhua gunmen fired on doctors in a drive-by shooting in southeastern Baghdad, killing one of them.
Another doctor, said to be a woman, was also reported killed in a similar incident in the capital's Zaafaraniyah area, said Xinhua.
Iraq has seen a marked increase in violence in recent months, raising fears of renewed conflict.