Anti-government protesters in the southern Iraqi city of Nassiriya say they will not back down despite the destruction of their camp by gunmen in an attack that left at least two people dead.

Iraqi security forces fired teargas and live bullets on Sunday in clashes with protesters who resisted with stones and petrol bombs, witnesses and security sources said.

Iraqi security forces raided Baghdad's main protest site on Saturday and tried to eject protesters in southern cities, firing tear gas and bullets killing four people and wounding dozens more, police and medical sources said.

Thousands of supporters of Iraqi cleric Moqtada Sadr amassed in Baghdad on Friday demanding the ouster of US troops

Two Iraqi police officers were killed and dozens of protesters were wounded in Baghdad and other cities on Monday in clashes with security forces

Iraqi anti-government protesters blockaded an oil field and rallied in southern cities Sunday while political factions remained paralysed in their attempts to form a new government.

Protesters broke into Iraq's southern Nassiriya oilfield on Saturday and forced employees to cut off electricity from its control station

Iraqi anti-government protesters again hit the streets Wednesday, angered by an activist's death and an attempt on the life of a popular TV satirist.

An officer in charge of security in the Iraqi capital Baghdad was replaced on Sunday, two days after an attack on anti-government protesters that witnesses said killed at least 16 people

Iraq's top cleric said Friday he was not taking part in talks on the country's new premier, as his supporters joined apprehensive youths still protesting in the capital despite widening intimidation campaigns.

Security forces opened fire on protesters in Baghdad and several cities in southern Iraq on Sunday, killing at least eight people and wounding dozens of others

Iraqi security forces killed four protesters in Baghdad on Friday and forcibly dispersed activists blocking the main port near Basra