Another horrifying mass murder by Al Qaeda “holy warriors” killed more than 250 members of the Yazidi sect (a pre-Islamic, pre-Christian pagan faith), in a sneak attack against a defenseless and remote target to achieve high casualties with little risk: Death toll in Iraq blasts rises to 250.

BAGHDAD - Rescuers used bare hands and shovels Wednesday to claw through clay houses shattered by an onslaught of suicide bombings that killed at least 250 and possibly as many as 500 members of an ancient religious sect in the deadliest attack of the Iraq war.

The U.S. military blamed al-Qaida in Iraq, and an American commander called the assault an “act of ethnic cleansing.”

The victims of Tuesday night’s coordinated attack by four suicide bombers were Yazidis, a small Kurdish-speaking sect that has been targeted by Muslim extremists who consider its members to be blasphemers.

The blasts in two villages near the Syrian border crumbled buildings, trapping entire families beneath mud bricks and other wreckage. Entire neighborhoods were flattened.

“This is an act of ethnic cleansing, if you will, almost genocide,” Army Maj. Gen. Benjamin Mixon, commander of U.S. forces in northern Iraq, told CNN. He said that was evident from the fact Yazidis live in a remote part of Ninevah province that has been far from Iraq’s conflict.