At least 12 people were killed on Tuesday in attacks in two Iraqi cities north of Baghdad, security officials said.
In Tikrit, 170 km north of the capital, five soldiers were killed in a suicide car bomb attack, a military official said.
Attacks in Baquba city killed seven people, including three policemen.
Iraq has seen almost daily attacks in recent months, raising the prospect of a return to the sectarian violence that pushed the country to the brink of civil war in 2006 and 2007.
According to UN estimates, 8,868 people died in 2013, Iraq’s highest death toll in five years.