A suicide attack and a car bombing have killed at least 19 people and wounded 38 in separate attacks targeting Shiites north of Baghdad.
There was no immediate claim of responsibility for the attacks, the latest in an increasing wave of violence across the country.
The deadliest attack took place in Baghdad's Kiraiyat district as worshippers gathered after the evening call to prayers at the Hussienieh Ali Basha mosque. A suicide bomber walked in and detonated his explosives, killing 15 and wounding 32, a police officer and a medical official said.
Earlier, an explosives-laden vehicle detonated near a Shiite protest camp in the city of Samarra, a police officer said.