At least 50 people have been killed in a series of bomb attacks across Iraq.
The deadliest killed 19 people in the southern city of Kut.
Several blasts hit the capital Baghdad, including a suicide bombing in which 15 people died.
No group has said it carried out the attacks but officials are blaming Islamic militant groups linked to the al-Qaeda network.
Almost all of the attacks targeted security forces.
That has highlighted fears about the stability of Iraq ahead of the formal end of American combat operations next week, the BBC reports.
US military spokesman Major General Stephen Lanza has called the attacks "desperate attempts" by al-Qaeda to undermine faith in the Iraqi security forces.
