Where are Ukraine's missing protesters?
7 February 2014 Last updated at 06:54 GMT
As many as 20 opposition activists in Ukraine are still unaccounted for - weeks after they were reported missing, the BBC has learned.
Human rights activists fear they have been taken by the security forces, although some of those reported missing have later appeared unharmed.
At least one opposition leader claims to have have been picked up by the security services and badly beaten.
Richard Galpin reports from Kiev.