A suicide bomber has killed 21 people in an attack in the west of Baghdad, police said tonight.
Earlier, two roadside bombs exploding in quick succession killed four people and wounded 15 in central Baghdad's Nahda district.
The first bomb apparently targeted a police patrol in the busy neighbourhood. When bystanders rushed to the scene to tend to the wounded, a second bomb exploded, police said.
Iraq has become a far less violent place in the past year, but US and Iraqi forces say militants are still capable of carrying out car and suicide bomb attacks, especially on busy urban streets.
A week ago, a suicide bomber killed 15 people in an attack on a checkpoint in Baghdad.
Reuters