Gun and bomb attacks killed three policemen and a soldier and wounded six other people in Iraq on Monday, security and medical officials said.
Police Lieutenant Colonel Saad al-Hamdani said gunmen opened fire with light weapons on a checkpoint in the Hamam al-Alil area, 35 kilometres (21 miles) from the restive northern city of Mosul, then fled the scene.
The attack killed three policemen and wounded two others, Hamdani said.
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Gunmen also shot dead a soldier in Baquba, in central Iraq's Diyala province, a police colonel and a medical source at a local hospital said.
A roadside bomb against a police patrol wounded three police in Khales, 65 kilometres (40 miles) north of Baghdad, a police major and a medical source said.
And gunmen wounded a police first lieutenant in the Karrada area of central Baghdad, an interior ministry official said.
Violence in Iraq has declined dramatically since its peak in 2006-2007, but attacks remain common, especially in Baghdad, Diyala and Mosul. A total of 132 Iraqis were killed in violence in May, official figures show.