A pro-Mubarak supporter apprehended by opposition demonstrators is led away by the army during rioting near Tahir Square in Cairo February 3, 2011. Anti-government protesters and supporters of Mubarak clashed on Thursday near a central Cairo square in a re-run of overnight violence that killed six and wounded more than 800 people. REUTERS/Suhaib Salem (EGYPT - Tags: POLITICS CIVIL UNREST IMAGES OF THE DAY)