On December 31, 2011, Moscow oppositionists held their traditional demonstration on the Triumfalnaya Square in support of Article 31 of the Russian Constitution (concerning freedom of assembly). As usual, the police arrested anyone who was carrying a placard or giving an interview to media correspondents, of whom several dozen were present. Police later said "approximately 60" people were detained. They estimated the total number of protesters at 200 plus 100 accompanying journalists and bloggers. One of the detainees was well-known conductor Mikhail Arkadiev who recently publicly refused to join Prime Minister Vladimir Putin's electoral organization ("All-Russia People's Front") and was fired from the Pacific Symphonic Orchestra.