Iraqi anti-riot police forces burn the protesters' tents at Tahrir square in central Baghdad. EPA
Smoke rises from tear gas fired by security forces during clashes with anti-government protesters in Baghdad. AP Photo
Anti-government protesters run during clashes with security forces in Baghdad. AP Photo
Followers of Shiite cleric Moqtada Al Sadr dismantle their tents in preparation for withdrawing from the anti-government protests in Tahrir Square in Baghdad. AP Photo
Iraqi anti-government protesters gather at Al Sinek bridge in the capital Baghdad. AFP
Iraqi anti-government protesters keep watch at Al Sinek bridge in the capital Baghdad. AFP
Iraqi anti-government protesters gather at Al Sinek bridge in the capital Baghdad. AFP
Iraqi anti-riot police forces burn the protesters' tents at Tahrir square in central Baghdad. EPA/MURTAJA LATEEF
epa08162782 Iraqi anti-riot police forces burn the protesters' tents at Tahrir square in central Baghdad. EPA
Iraqi anti-government protesters carry black shields made out of metal drums, on which they had painted the words "Tahrir Shield Squad.", as they gather at al-Sinek bridge in the capital Baghdad. AFP
Iraqi anti-riot police forces burn the protesters' tents at Tahrir square in central Baghdad. EPA
Smoke rises from tear gas fired by security forces during clashes with anti-government protesters in Baghdad. AP Photo
Anti-government protesters run during clashes with security forces in Baghdad. AP Photo
Followers of Shiite cleric Moqtada Al Sadr dismantle their tents in preparation for withdrawing from the anti-government protests in Tahrir Square in Baghdad. AP Photo
Iraqi anti-government protesters gather at Al Sinek bridge in the capital Baghdad. AFP
Iraqi anti-government protesters keep watch at Al Sinek bridge in the capital Baghdad. AFP
Iraqi anti-government protesters gather at Al Sinek bridge in the capital Baghdad. AFP
Iraqi anti-riot police forces burn the protesters' tents at Tahrir square in central Baghdad. EPA/MURTAJA LATEEF
epa08162782 Iraqi anti-riot police forces burn the protesters' tents at Tahrir square in central Baghdad. EPA
Iraqi anti-government protesters carry black shields made out of metal drums, on which they had painted the words "Tahrir Shield Squad.", as they gather at al-Sinek bridge in the capital Baghdad. AFP
Iraqi anti-riot police forces burn the protesters' tents at Tahrir square in central Baghdad. EPA
Iraqi security forces fire on crowds as Baghdad crackdown begins
The operation to clear the streets of the capital appeared under way on Saturday