Maria Alyokhina and Nadezhda Tolokonnikova were separated and relocated after a court upheld their two-year sentences for hooliganism driven by religious hatred.
© PA Images / Alexander Zemlianichenko/AP
Defence lawyer Violetta Volkova said: "Nadya Tolokonnikova has been sent to Mordovia, and Maria Alyokhina to Perm. They were convoyed on Saturday."
The prison camps in Perm and Mordovia are part of a network of Soviet-era prison camps infamous for their tough conditions.
Their relatives learned of the move when parcels sent to their previous Moscow prison were returned.
A Twitter account set up by the band's supporters said: "Of all the possible options, these are the cruelest prison camps."
The third jailed Pussy Riot member Yekaterina Samutsevich was freed in September.
