Jailed Kremlin critic Alexei Navalny says he has to sit for hours under a portrait of Russian President Vladimir Putin in his new prison.
Navalnyj wrote on Facebook that he was forced to sew seven hours a day, five days a week and then to sit under the portrait on a wooden bench.
Supporters of the detainee described his new everyday life as "torture".
Even on Sunday, his day off, he had to sit on a wooden bench with other prisoners for ten hours, Navalny continued.
"It's called an educational measure."
Navalny was transferred in June from a penal colony in Pokrov to a penal colony in the city of Vladimir, east of Moscow - according to his allies "one of the most fearsome prisons in Russia".
The Kremlin critic himself had described his new prison as a "prison within a prison" and said he was surrounded by convicted murderers.
There is a six meter high fence around his prison barracks.
Navalnyj is the most prominent critic of Russian President Vladimir Putin and became known for exposing corruption cases in Russia.
He was arrested at Moscow Airport on his return from Germany in January 2021.
He had previously been treated in Berlin for poisoning he suffered in Russia with a neurotoxin from the Novichok group, for which he blames Putin.