At least 25 people were killed and 28 more were wounded in attacks that focused on security forces.
Five soldiers were killed and four more were wounded in a double bombing at a Baiji refinery.
Gunmen killed four Sahwa members and wounded two more at a Samarra checkpoint.
In Mosul, a car bomb killed a civilian and wounded seven others, including Peshmerga fighters. A civilian was killed in crossfire. Gunmen killed two people in a mechanics shop.
Three Sahwa elements were shot dead in Balad.
In Baghdad, a bomb killed a government employee. A dumped body was discovered. One person was killed and eight more were wounded in a blast south of Baghdad.
In Ramadi, a grenade killed a civilian near the stadium. A civilian was killed during a home invasion.
Gunmen killed a civilian in Jurf al-Sakhar.
A suicide bomber was stopped in Kirkuk, but one policeman was wounded in his failed attempt.
In Qayara, gunmen attacked a policeman’s home where they killed his brother. An I.E.D. blast wounded a policeman on patrol.
Five policemen were wounded in a pair of blasts in Suwayra.