Washington Post backs AP story.
It's been a major discussion in the blogosphere.
"They then blasted open the front of the mosque, dragged six worshippers outside, doused them with kerosene and set them on fire. This account of one of the most horrific alleged attacks of Iraq's sectarian war emerged Tuesday in separate interviews with residents of a Sunni enclave in the largely Shiite Hurriyah district of Baghdad." (via Patterico)