Another 20 were reportedly wounded in the attack in the mainly Shi'ite neighborhood of Abu Dshir. Most of those killed were reportedly guests at a wedding party.
The U.S. military, meanwhile, said two U.S. soldiers were killed and two were wounded by a roadside bomb in south Baghdad.
Separately, U.S. attack helicopters killed four alleged militants in an air strike on their vehicle in the Shi'ite stronghold of Al-Sadr City, in northeast Baghdad.
(Reuters, AP, AFP)