A suicide bomber has killed 28 people at a police recruitment centre in the Iraqi capital Baghdad, police say.
At least 57 other people were wounded in the attack, reportedly carried out by a bomber on a motorcycle.
The blast hit would-be recruits queuing outside the academy, which has been targeted at least twice before.
The level of violence in Iraq has dipped significantly since 2007, but remains a feature of daily life for many Iraqis.
At least 12 people died two days ago when a car bomb exploded at a cattle market in Babil province.
There are still almost daily violent incidents in Baghdad.
Explosives belt
The attack happened at about 1000 (0700 GMT) in "the middle of a crowd outside the [police] academy on Palestine Street", a police official told AFP news agency.
Reports suggest the bomber detonated a belt of explosives as he crashed his motorbike into a line of people waiting at the side entrance to the academy. Some of the dead were policemen, while others were police recruits and civilians.
