Injured student is evacuated by friends after being hit by a stone during a protest in Caracas

An injured student is evacuated by friends after being hit by a stone during a protest in Caracas March 21, 2013. Police fired teargas on Thursday to control a flare-up in downtown Caracas between anti-government student protesters and supporters of the late President Hugo Chavez in an increasingly volatile atmosphere ahead of next month’s election. Several hundred students were marching to the election board’s headquarters to demand a clean vote, when they were blocked by government supporters who hurled stones, bottles and eggs at them, a Reuters witness said. REUTERS/Carlos Garcia Rawlins (VENEZUELA – Tags: POLITICS CIVIL UNREST)