People walk past a news stand displaying a magazine showing Russian Prime Minister Vladimir Putin on the cover.Mikhail Voskresensky/Reuters
A participant wears a badge saying "12 more years? No!" during a protest demanding fair elections in central Moscow on March 5, 2012.Anton Golubev/Reuters
A participant holds a placard displaying an image of Russian Prime Minister Vladimir Putin during a protest demanding fair elections held in the southern Russian city of Rostov-on-Don.Vladimir Konstantinov/Reuters
Russian police detain a participant during an opposition rally in St. Petersburg on March 5, 2012.Alexander Demianchuk/Reuters
Sergei Udaltsov, leader of opposition party Left Front, speaks to the media before a protest demanding fair elections in central Moscow.Denis Sinyakov/Reuters
Opposition leader Sergei Udaltsov (centre) is detained by police. Thousands of protesters chanting "Russia without Putin" took to the streets of Moscow and St. Petersburg to challenge Vladimir Putin's victory.Anton Goublev/Reuters
Opposition supporters gather before a protest demanding fair elections in central Moscow March 5, 2012.DENIS SINYAKOV/REUTERS