Rebel Shi'ite cleric Moqtada al-Sadr has called on his followers across Iraq to stop fighting U.S. and Iraqi government forces.
Top aides say the cleric will announce plans for a major political movement within days.
Today's (Monday's) announcement comes three days after Moqtada al-Sadr's Mahdi militia stopped fighting U.S. and Iraqi troops in the holy city of Najaf.
The peace deal, brokered by religious authorities, ended three weeks of fighting that killed scores of Iraqis and U.S. troops.
In other developments, a U.S. military spokesman says one U.S. soldier was killed and two wounded when a roadside bomb exploded near a convoy in northern Iraq late Sunday just south of the city of Mosul.
Information for this report is provided by AP and AFP.