Violence erupts among Iraqi Shiites

BAGHDAD, Iraq — Clashes erupted between rival Shiite groups across the Shiite-dominated south Wednesday, threatening Iraq with yet another crisis at a time when politicians are struggling to end a constitutional stalemate with Sunni Arabs.

The confrontation in at least five southern cities — involving a radical Shiite leader who led two uprisings against U.S. forces last year — followed the boldest assault by Sunni insurgents in weeks in the capital.

Dozens of insurgents wearing black uniforms and masks attacked Iraqi police in western Baghdad with multiple car bombs and small-arms fire that killed at least 13 people and wounded 43, police said.

The new violence came as the Pentagon announced it was ordering 1,500 paratroopers from the 82nd Airborne Division to Iraq to provide security for the scheduled Oct. 15 referendum on the proposed constitution and the December national elections.

Trouble in the south began when supporters of radical cleric Muqtada al-Sadr tried to reopen his office in the Shiite holy city of Najaf, which was closed after the end of fighting there last year.

When Shiites opposed to al-Sadr tried to block the move, fights broke out. Four people were killed, 20 were injured and al-Sadr's office was set on fire, police said.

That enraged al-Sadr's followers, who blamed the country's biggest Shiite party, the Supreme Council for the Islamic Revolution in Iraq, or SCIRI.

The party, which controls key posts in the national government, quickly denied responsibility and condemned the attack. Interior Minister Bayan Jabr, a member of SCIRI, told Iraqiya television he was dispatching a commando brigade to Najaf to restore order. A curfew was imposed from 11 p.m.

Despite the government's move, 21 pro-al-Sadr members of parliament and three senior Cabinet officials announced they would refuse to perform their duties indefinitely to protest the Najaf attack.

Municipal officials loyal to al-Sadr in several southern cities issued similar declarations.

As word of the Najaf attack spread, clashes broke out between the two Shiite rival groups across central and southern Iraq. The violence extended to the country's second largest city, Basra, where several hardline Shiite groups are competing for influence.