A Moscow court has ruled that websites must remove video clips of the Pussy Riot female punk band, two of whose members are in jail.
The clips include a crude anti-Kremlin song, which they performed in Moscow's main cathedral in February and for which they were convicted.
The "punk prayer" has been viewed nearly 2.4m times on YouTube.
In its ruling, the court called the clips "extremist". Websites that fail to remove the clips may be blocked.
http://www.bbc.co.uk/news/world-europe-20539819
http://youtu.be/GCasuaAczKY (video)
http://www.bbc.co.uk/news/world-europe-20539819
http://youtu.be/GCasuaAczKY (video)