Bombings targeting Iraqi police in Baghdad have killed at least 25 people and wounded dozens more.
Two blasts occurred when a pair of suicide bombers tried to ram their vehicles through police station gates.
The police are a vulnerable target for militants because they lack the sophisticated weaponry that the Iraqi army has.
No group has admitted being behind the attacks, but they carry the hallmarks of previous bombings by militant groups such as al-Qaeda in Iraq.
The US military is set to leave Iraq by the end of this year under the terms of a 2008 agreement, although a small number of American troops may remain in the country to train Iraqi security forces