Iran uprising turns bloody

An Iranian woman at the Freedom Tower in Tehran shows her opposition to last weekend's presidential election results. Photograph: Getty Images/Getty Images

Student protesters stand on the roof of their university campus. Photograph: Getty Images

15 June 2009, Tehran, Iran: Hundreds of thousands of supporters of opposition presidential candidate Mir Hossein Mousavi, who claims that Friday’s election was tainted by fraud, gather to protest against the result Photograph: Ben Curtis/AP

Supporters of Mir Hossein Mousavi at the Freedom Tower. Photograph: Getty Images

Iranians gather peacefully while demonstrations go on in the streets. Photograph: Getty Images

Some protesters wore masks to avoid identification. Photograph: Getty Images

Supporters of Mir Hossein Mousavi. Photograph: Getty Images

Opposition supporters carried placards claiming the election result was rigged. Photograph: Getty Images

A member of a pro-government militia, left, stands guard on a rooftop as demonstrators approach. Photograph: Vahid Salemi/AP

Protesters were wounded when gunmen opened fire. Photograph: AFP/Getty Images

A suspected member of a pro-government militia, centre, is protected from angry pro-Mousavi crowds. Photograph: Vahid Salemi/AP

Protesters wearing the green motif of Mousavi's campaign showed off their injuries. Photograph: Getty Images

A man who suffered a gunshot wound to his right leg when pro-government militia fired shots in the air is taken to hospital in the back seat of a car. Photograph: Ben Curtis/AP

A car is set alight next to the pro-government militia base. Photograph: Vahid Salemi/AP

Yekaterinburg, Russia: Mahmoud Ahmadinejad, third from left, was with world leaders at the Shanghai Co-operation Organisation security summit while the violence continued in his country's capital. Photograph: Dmitry Kostyukov/AFP/Getty Images