Iraq: Demonstrations turn violent in Baghdad

Seven people, including a police officer, have been killed during a large anti-government rally in the Iraqi capital. What started as an orderly protest, called by Shia cleric Muqtada al Sadr, soon turned violent. Mortar rounds and rockets were later fired at Baghdad's heavily guarded Green Zone. Al Jazeera's Mohamed Vall reports. Subscribe to our channel: http://aje.io/AJSubscribe Follow us on Twitter:   / ajenglish   Find us on Facebook:   / aljazeera   Check our website: http://www.aljazeera.com/