At least 15 people were killed and 26 more were wounded in violence that focused on restive Diyala province.

A car bomb blast killed four people and wounded 15 more at a marketplace in Bani Saad. Many victims were removed from the scene before a complete count had taken place.

A bomb in Rabeaa killed three people, including an eight-year-old child.

Two gunmen were killed and four policemen were wounded during an attack on a checkpoint in Hamdaniya.

A teacher and his son were executed after they were dragged out of their house in Madaen.

In Mosul, a bomb killed a soldier and wounded two more. Another soldier was gunned down.

A roadside bomb in Baquba left one dead and four wounded.

In Baghdad, an Education Ministry employee was shot dead in his car.

A Sahwa member was shot dead at a Shirqat checkpoint.

In Udhaim, gunmen wounded a civilian.

Strong blasts occurred in Kirkuk.

Rockets fell on an army base near Falluja.

Turkish warplanes bombed locations in northern Iraq.

Read more by Margaret Griffis

• Attack on Pilgrims in Iraq Leaves Six Iranians Dead; 14 Iraqis Also Killed – May 25th, 2013
• Twenty Killed in Attacks Focused on Iraqi Security Forces – May 23rd, 2013
• 31 Killed in Iraq, Including 12 Slaughtered in a Baghdad Brothel – May 22nd, 2013
• Sixty Killed, 132 Wounded in Ongoing Iraq Carnage – May 21st, 2013
• Monday Mayhem: 133 Killed, 283 Wounded in Iraq – May 20th, 2013