YouTube

EDITOR'S NOTE: This photograph is from a social networking website. Reuters has not been able to verify the authenticity of the material. A frame grab from a YouTube video footage purportedly shows a protest near Tehran University on July 17, 2009. Iranian police detained at least 15 people and used tear gas and batons to disperse supporters of opposition leader Mirhossein Mousavi outside Tehran University on Friday, a witness said. REUTERS/YouTube (IRAN CONFLICT POLITICS) NO SALES. NO ARCHIVES. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS