Nadezhda Tolokonnikova is being transferred to a different prison but her husband Pyotr Verzilov says he has heard nothing from her for 19 days.

He posted a photo of himself on Twitter from Nizhniy Ingash, a Siberian village where he thought she might be in jail.

She and another band member were jailed over a protest in a Moscow cathedral.

Nizhniy Ingash is in the Krasnoyarsk region of central Siberia, some 4,500km (2,796 miles) east of Moscow.

In September Tolokonnikova went on hunger strike at a penal colony in Mordovia, which lies between Siberia and Moscow.

She is serving a two-year jail term for hooliganism. She and two other Pussy Riot protesters were sentenced in August 2012, but one of them was later released on appeal.