At least seven people were killed and four injured on Tuesday in bomb blasts in Iraq, police sources said, DPA reported.
An Iraqi officer with the rank of captain and five soldiers were killed in a blast that targeted their patrol to the north of Baghdad in Diyala Province, police sources told the Aswat al-Iraq news agency.
The attack took place as their patrol was passing through the main road in Khalis, a town near Diyala's capital Baquba, some 75 kilometres northeast of Baghdad.
In central Baquba, four civilians were injured in a blast on Kharasan street, sources added.
Further to the north, one civilian was killed when a bomb went off in al-Intisar neighbourhood in eastern Mosul.
The blast came a day after attacks killed five people in Mosul, some 400 kilometres north of Baghdad.
The area in and around Mosul is among the most ethnically diverse and dangerous in Iraq. Insurgents mount near-daily attacks in the area despite regular security sweeps, which police say have netted hundreds of suspects.