Police officers detain activists of the Other Russia movement who tried to hold an unsanctioned protest outside the central election commission in Moscow, on March 5, 2012. AFP PHOTO / KIRILL KUDRYAVTSEV

Police officers detain activists of the Other Russia movement who tried to hold an unsanctioned protest outside the central election commission in Moscow, March 5, 2012. AFP PHOTO / KIRILL KUDRYAVTSEV

Police officers detain activists of the Other Russia movement who tried to hold an unsanctioned protest outside the central election commission in Moscow, on March 5, 2012. AFP PHOTO / KIRILL KUDRYAVTSEV

Police officers detain activists of the Other Russia movement who tried to hold an unsanctioned protest outside the central election commission in Moscow, on March 5, 2012. AFP PHOTO / KIRILL KUDRYAVTSEV

One of the detained Other Russia movement activists who tried to hold an unsanctioned protest outside the central election commission shouts from a police bus in central Moscow, on March 5, 2012. AFP PHOTO / KIRILL KUDRYAVTSEV

One of the detained Other Russia movement activists who tried to hold an unsanctioned protest outside the central election commission looks through a guarded window of the police vehicle in central Moscow, on March 5, 2012, with a photo of of Russia's Prime Minister Vladimir Putin plastered on the window. AFP PHOTO / KIRILL KUDRYAVTSEV

One of the detained Other Russia movement activists who tried to hold an unsanctioned protest outside the central election commission looks through a guarded window of the police vehicle in central Moscow, on March 5, 2012, with a photo of Russia's Prime Minister Vladimir Putin reading: "Putin, Let Corruption Take You!" plastered on the window. AFP PHOTO / KIRILL KUDRYAVTSEV

Police officers detain the Other Russia movement leader Eduard Limonov who tried to hold an unsanctioned protest outside the central election commission in Moscow, on March 5, 2012. AFP PHOTO / KIRILL KUDRYAVTSEV

One of the protest movement leaders, Alexei Navalny, addresses the opposition rally to demand fair elections at the Pushkinskaya Square in central Moscow, March 5, 2012. Some 5,500 people were gathering today in Moscow for the first major opposition rally after Vladimir Putin's crushing victory in Russian presidential elections, police in the capital said. AFP PHOTO / NATALIA KOLESNIKOVA

Opposition activists shout slogans during a rally demanding fair elections at the Pushkinskaya Square in central Moscow, March 5, 2012. Some 5,500 people were gathering today in Moscow for the first major opposition rally after Vladimir Putin's crushing victory in Russian presidential elections, police in the capital said. AFP PHOTO/SERGEI SUPINSKY

Two of the protest movement leaders, former lawmaker Vladimir Ryzhkov (L) and left radical Sergei Udaltsov (R), attend the opposition rally to demand fair elections at the Pushkinskaya Square in central Moscow, March 5, 2012. Some 5,500 people were gathering today in Moscow for the first major opposition rally after Vladimir Putin's crushing victory in Russian presidential elections, police in the capital said. AFP PHOTO / NATALIA KOLESNIKOVA

One of the protest movement leaders, left radical Sergei Udaltsov addresses the opposition rally to demand fair elections at the Pushkinskaya Square in central Moscow, March 5, 2012. Some 5,500 people were gathering today in Moscow for the first major opposition rally after Vladimir Putin's crushing victory in Russian presidential elections, police in the capital said. AFP PHOTO / NATALIA KOLESNIKOVA

One of the protest movement leaders, Alexei Navalny, addresses the opposition rally to demand fair elections at the Pushkinskaya Square in central Moscow, March 5, 2012. Some 5,500 people were gathering today in Moscow for the first major opposition rally after Vladimir Putin's crushing victory in Russian presidential elections, police in the capital said. AFP PHOTO / NATALIA KOLESNIKOVA

One of the former presidential candidates billionaire Mikhail Prokhorov addresses the opposition rally to demand fair elections at the Pushkinskaya Square in central Moscow, March 5, 2012. Some 5,500 people were gathering today in Moscow for the first major opposition rally after Vladimir Putin's crushing victory in Russian presidential elections, police in the capital said. AFP PHOTO / NATALIA KOLESNIKOVA

An opposition activist holds a placard reading "Russia without Putin" during a rally demanding fair elections at the Pushkin Square in central Moscow on March 5, 2012. The opposition protest drew about 20,000 where leaders of the opposition movement slammed Putin's victory in the eve's presidential election with around 64 percent of the vote. Russian election monitors sorted today through thousands of complaints of alleged fraud in presidential polls, as they complained of pressure and even beatings during their work. AFP PHOTO / SERGEI SUPINSKY

An activist displays a placard featurng Russian Prime Minister Vladimir Putin wiping his rear with a ballot and reading:"Your vote is important as never before!" during a mass opposition rally in Moscow's Pushkinskaya Square, on March 5, 2012. Strongman Vladimir Putin reclaimed the Kremlin in a crushing presidential election victory that he declared was honest but the opposition said was undermined by serial violations. AFP PHOTO / JOHN MACDOUGALL

An activist displays a caricature of Russian Prime Minister Vladimir Putin and reading :"The Outlaw!" during a mass opposition rally in Moscow's Pushkinskaya Square, on March 5, 2012. Russian election monitors sorted today through thousands of complaints of alleged fraud in presidential polls, as they complained of pressure and even beatings during their work.AFP PHOTO / JOHN MACDOUGALL

People take part in a rally demanding fair elections at the Pushkin Square in central Moscow on March 5, 2012. The opposition protest drew about 20,000 where leaders of the opposition movement slammed Putin's victory in the eve's presidential election with around 64 percent of the vote. Russian election monitors sorted today through thousands of complaints of alleged fraud in presidential polls, as they complained of pressure and even beatings during their work. AFP PHOTO / SERGEI SUPINSKY

A woman displays a placard with partly seen Russian Prime Minister Vladimir Putin and a sign addressing him: "Why do you hate us so much?" during a mass opposition rally in Moscow's Pushkin square March 5, 2012. Strongman Vladimir Putin reclaimed the Kremlin in a crushing presidential election victory that he declared was honest but the opposition said was undermined by serial violations. AFP PHOTO / JOHN MACDOUGALL

A woman displays a placard with a photo of Russian Prime Minister Vladimir Putin and a sign reading: "What? Again?" during a mass opposition rally in Moscow's Pushkin square March 5, 2012. Strongman Vladimir Putin reclaimed the Kremlin in a crushing presidential election victory that he declared was honest but the opposition said was undermined by serial violations. AFP PHOTO / JOHN MACDOUGALL