Jailed Pussy Riot stars Nadezhda Tolokonnikova and Maria Alekhina are taking their fight for freedom to the European Court of Human Rights.

The two women were sentenced to two years in prison by a Moscow judge in August (12) for performing a protest song against President Vladimir Putin at a cathedral in February (12).

They were transported to remote prison camps over the weekend (20-21Oct12) to serve out the sentences but it has now emerged the pair is not giving up its fight for freedom and plans to appeal to one of the highest courts in Europe.

Yekaterina Samutsevich, a third Pussy Riot member who was freed on appeal earlier this month (Oct12), tells rock magazine Nme, "My sentence still stands, I haven't been pardoned. We're all unquestionably considered guilty. We're all going to submit documents to the European Court against it."

The trio's jail term sparked outrage in the West and led to calls for their freedom from stars including Sir Paul MCCartney, Madonna, and Bjork - and Samutsevich is convinced she was freed as a result of the international pressure.

She adds, "It's possible it was a sort of surrender by the authorities thanks to all the global support."