Separate attacks in Iraq's northern city of Mosul left six security personnel dead Monday, as the country's Sunni minority continued to protest against alleged discrimination by the Shiite-controlled government.
Thousands of Sunnis have taken to the streets in western and northern Iraq since last week, demanding the repeal of an anti-terrorism law they claimed targets Sunnis.
The Nineveh provincial council said Monday it would file a complaint against the armed forces and the local police over the "suppression of demonstrators," the Sumaria news website reported.
The complaint followed reports that four protestors were injured in Mosul, Nineveh's provincial capital, when an army vehicle hit them while trying to disperse demonstrators.
Also in Mosul, three policemen were killed and four injured when gunmen attacked a checkpoint.
Shortly after, an explosive device killed two soldiers and injured a civilian in the western part of the city, a security source told dpa.
Police also found the body of what they said was a Christian woman who had been stabbed in her apartment in the eastern part of the city.
Mosul - which is located some 400 kilometres north of Baghdad - and its surrounding areas are among Iraq's most ethnically and religiously diverse areas.
Violence in Iraq has dropped dramatically in recent years, but near-daily attacks still take place amid a festering political crisis stemming from feuds between the country's Sunni Muslim politicians and Shiite Prime Minister Nuri al-Maliki.
Iraq is 97 per cent Muslim, according to the most recent estimates available. Of these, about 60 to 65 per cent are Shiite, and the rest Sunnis.