At least nine people have been killed in a roadside bomb explosion in eastern Baghdad, Iraqi police told the BBC.
The target was an elite police unit, they said. Five of the dead were reported to be police commandos.
Meanwhile a suicide attacker has blown himself up in a busy marketplace in the town of Hilla, killing at least five people, medical officials said.
Police quoted by Reuters news agency said the bomber cycled into the market before detonating his explosives.
Hilla, south of Baghdad, has been the target of several big bombings.
In February, more than 120 people, many of them queuing to join the police force, were killed in a car bombing in the centre of town.