A poster of Iran's moderate presidential candidate Mirhossein Mousavi is seen in the ground in Tehran June 13, 2009. Hundreds of supporters of President Mahmoud Ahmadinejad and moderate challenger Mousavi clashed in Tehran on Saturday after a landslide victory for Ahmadinejad in a presidential election, a Reuters witness said. Reuters Pictures 8 months ago

A poster of Iran's moderate presidential candidate Mirhossein Mousavi is seen in the ground in Tehran June 13, 2009. Hundreds of supporters of President Mahmoud Ahmadinejad and moderate challenger Mousavi clashed in Tehran on Saturday after a landslide victory for Ahmadinejad in a presidential election, a Reuters witness said.