Opposition supporters hold an installation depicting Russia's Prime Minister Vladimir Putin and President Dmitry Medvedev in a prison cell, during a rally to protest against violations at the parliamentary elections and the policies conducted by current Russian authorities in St. Petersburg, Russia, 18 December 2011. The words read, 'For usurpation of power'. The election, in which the United Russia party of Medvedev and Prime Minister Vladimir Putin won just under 50 per cent of the vote, have prompted mass protests by people who say that the party actually performed significantly worse and only managed to retain its majority with blatant ballot stuffing. EPA/ANATOLY MALTSEV
