Car bomb kills 16 in Iraqi Shi'ite city

By Khaled Farhan

KUFA, Iraq (Reuters) - A suicide bomber killed 16 people and wounded 70 at a crowded market in Iraq's Shi'ite city of Kufa on Tuesday, officials said, the latest in a string of sectarian attacks blamed on al Qaeda Sunni militants.

In a major step towards meeting power-sharing targets set by Washington for Baghdad, members of an Iraqi committee set up to reform the constitution said they hoped to submit proposals to parliament next week.

The announcement comes amid growing U.S. impatience at Shi'ite Prime Minister Nuri al-Maliki's progress on accords the United States says are key to easing Shi'ite-Sunni violence.

Leaders from the Sunni Arab minority, the backbone of the insurgency, have renewed threats to quit Maliki's government because they say their concerns are being ignored.

In Washington, the Pentagon said it had told another 35,000 U.S. soldiers they were in line to go to Iraq, a move that gives commanders enough forces to maintain a security crackdown there through at least the end of the year.

Pentagon spokesman Bryan Whitman said the decision was not related to the military's so-called troop "surge", which will bring the number of U.S. forces in Iraq to 160,000 once reinforcements are in place by June 1.

Witnesses said the bomber blew himself up in an open-air market packed with morning shoppers in central Kufa, near the holy Shi'ite city of Najaf, 160 km (100 miles) south of Baghdad.

"I saw the minibus coming through the crowds. There was one person driving. He tried to park the vehicle and then it exploded. There were many bodies," Mohan Ali told Reuters.