Four car bombs exploded across the Iraqi capital today, killing 20 people and wounding scores, police said.
In the deadliest single attack, a blast at a popular market in eastern Baghdad's crowded Sadr City killed at least 10 people and wounded 28.
Another car bomb blew up in a busy central Baghdad street next to a group of labourers queuing for work, killing six people and wounding 16, police said.
The other blasts shook a market area of Husseiniya, on Baghdad's northern outskirts, and a street in eastern Baghdad, apparently missing the convoy of an Interior Ministry official but killing two bystanders.
Violence has fallen dramatically in Iraq to levels not seen since late 2003, but militants still retain the ability to carry out large scale bomb attacks, especially in the capital and the northern provinces of Diyala and Nineveh.
Twenty people were killed by a car bomb in north Baghdad's district Shaab district on 26 March.