More members of the anti-Putin punk rock group Pussy Riot have been unmasked, pro-Kremlin youth group Nashi's head Konstantin Goloskokov claimed on Friday.

Nashi earlier announced that they had set up a "prize fund" which would go to anyone sharing reliable information with them regarding the identities of the remaining activists.

Three members of the group were sentenced to two years behind bars for hooliganism and promoting religious hatred in August, after performing a controversial protest song in Moscow's Cathedral of Christ the Savior. A video of the performance, in which band members were wearing balaclavas to conceal their identities, was posted on the internet.

In his livejournal blog post Goloskokov says he has passed a list of names to the police, adding some of those listed are thought to have participated in protests and given interviews to the media as members of the group.

Those who passed on information about the group members' identities will receive a cash reward if the police confirm these individuals are connected to the protest group, he added.