Politician claims punk protest group were trying to 'provoke this conflict'
Punk collective debut video for protest song
Members including Nadezhda Tolokonnikova and Maria Alekhina attacked while trying to perform
Masha Alyokhina and Nadia Tolokonnikova say they have been detained in the resort near Winter Olympics site
Masha Alyokhina and Nadia Tolokonnikova speak out following last week's anonymous open letter
Anonymous letter discusses duo's departure from activist group
Nadezhda Tolokonnikova and Maria Alyokhina introduced on stage in New York by Madonna
Nadezhda Tolokonnikova and Maria Alyokhina will appear at the Bringing Human Rights Home concert in Brooklyn
Backing singer film '20 Feet From Stardom' also in running for nomination
Punk collective say their attitude has 'not changed' towards Russian President