A car bomb targeting a Shiite religious hall in north Baghdad on Friday killed 15 people and wounded 32, security and medical officials said.
The bomb went off in the predominantly Shiite neighbourhood of Graiat at about 8:00 pm (1700 GMT), the officials said, with one saying the blast was caused by a suicide bomber.
It struck near Husseiniyah Ali Basha, a Shiite religious hall used for prayers and other religious ceremonies.
The attack was the latest of several targeting Shiite Muslims in recent days, with more than 159 people killed already in July in attacks that have mostly struck against Shiites.
No group immediately claimed responsibility for the attack, but Sunni militants linked to Al-Qaeda often target Iraq's majority Shiite population, whom they regard as apostates.