At least five people were killed including an Iraqi soldier and up to 13 others wounded on Friday in separate violent incidents in different areas south of the capital, a local police source told Xinhua.
"A fierce clash broke out between unknown insurgents and a joint patrol of U.S. and Iraqi forces in the Jurf al-Sakher village, some 65 km south of Baghdad overnight, killing four insurgents," the source said on condition of anonymity.
The U.S. military has not confirmed the incident so far.
Early Friday, a roadside bomb detonated when an Iraqi army patrol was passing by in central Hilla City, some 100 km south of Baghdad, killing a soldier and injuring three others, the source said.
Earlier, several mortar rounds landed on the al-Asriyah village in the al-Iskandriyah district, some 45 km south of the capital, wounding at least ten residents, the source added.
Since Feb. 14, U.S. and Iraqi forces have launched a security crackdown in Baghdad, which has curbed some sectarian attacks and assassinations in the capital but failed to stamp out the violence in the areas outside Baghdad.