At least three anti-government protesters have been shot dead in the southern city of Nassiriya after Iraqi forces opened fire to disperse a crowd.
More than 100 other people were wounded in the clashes in Nassiriya, officials added.
Since protests erupted in October, security forces have used live ammunition, tear gas and stun grenades against mostly young, unarmed protesters, killing more than 280 people.
Despite some attempts, Prime Minister Adel Abdul Mahdi's government has failed to address the demands for an overhaul of Iraq's sectarian political system.

Hezbollah warns Israeli residents to evacuate towns near border
US House rejects war powers resolution, backs Trump on Iran war
Saudi Arabia, Qatar, Kuwait intercept drones targeting territory
GCC and EU ministers urge immediate halt to Iranian attacks
India's tech state Karnataka bans social media for children under 16
Indonesia says it will withdraw from Board of Peace if it does not benefit Palestinians
Trump wants say on Iran's next leader
US, Venezuela agree to re-establish diplomatic ties
