Shi'a Islam in Iraq

Gunmen attacked a Sunni mosque during Friday prayers and killed at least 64 people, prompting Sunni lawmakers to withdraw from talks on forming a new, more inclusive government capable of confronting the Islamic extremists who have overrun large swaths of Iraq.

Iraqi security forces found the bodies Wednesday of 53 men who had been bound and executed in a confessionally mixed province south of the capital, police and medical officials said.