Ten civilians have been killed in a car bombing in a shopping area in the Iraqi capital, Baghdad.
At least 11 others are said to have been injured in the blast, which happened at 1530 (1230 GMT).
The explosion ripped through in Jadida, a mostly Shia district in the eastern part of the Iraqi capital, police said.
Elsewhere in the capital, a suicide bomber killed at least two people and injured about 20 other passengers on a mini-bus.
A recent US report says attacks on troops and civilians have reached their highest level since an interim Iraqi government took power in June 2004.
At least 100 people are killed on average every day in Baghdad, many of them in sectarian attacks, correspondents say.
Some 12,000 police officers have been killed since March 2003 - one death for every 16 officers, the interior ministry has said.
On Sunday, a suicide bomb attack killed seven policemen and wounded 20 others during a parade at a base north of Baghdad.
Escalating violence in Iraq has prompted the US to re-examine its military policy in the country.
The US military said six US troops were killed in a wave of attacks on Saturday.