Police Leave Najaf; Peace Deal in Question

From CNN:

About 100 Iraqi police, who had arrived in Najaf this week to begin joint patrols with U.S.-led coalition forces, have left the Shiite holy city, according to U.S. military officials.

It was not clear why they apparently deserted their posts on Sunday, but it has added to the skepticism at the U.S. military base in Najaf that a unilateral peace agreement announced three days ago by Shiite representatives will quell the ongoing violence.