Violence Erupts in Baghdad After Iraqi Cleric Moqtada al-Sadr Quits Politics

BAGHDAD—Iraq was in peril of plunging into chaos Monday, as protesters stormed authorities buildings and closely armed militias flooded into the capital’s Inexperienced Zone, setting off an intense city battle that threatened the nation’s stability.

A minimum of 17 Iraqis have been killed by gunfire and greater than 90 have been reported wounded in clashes within the zone, turning the normally impregnable district of presidency workplaces, embassies and villas of senior Iraqi officers right into a besieged sector.