Militants assaulted a police station north of Baghdad on Wednesday, killing a policeman, while five people, including a doctor, were shot dead in other attacks, security and medical officials said.
Militants shelled the police station in Hibhib, site of the killing of Al-Qaeda in Iraq leader Abu Musab al-Zarqawi in 2006, before attacking it with light and medium weapons, a colonel in the provincial operations command said.
One policeman was killed and two others were wounded, the colonel said, adding that police killed three attackers wearing explosive belts.
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Deputy Interior Minister Adnan al-Assadi told state television that police in Hibhib had thwarted an attempt to free prisoners.
In the northern oil city of Kirkuk, gunmen killed a well-known children's doctor, Ridha Hamza al-Bayati, in front of his home, a security source and Kirkuk health directorate chief Sadiq Omar Rasul said.
In the main northern city of Mosul, two soldiers were killed in an attack on a checkpoint, while a man was shot dead in front of his house, army First Lieutenant Khaled Falayih and Dr Tareq al-Nuaimi said.
And a provincial council security official was shot dead in west Baghdad, an interior ministry official and a medical source said.
Violence in Iraq is down from its peak in 2006 and 2007 but attacks remain near-daily occurrences.