Alexei Navalny, the jailed Russian opposition leader, says he could be sent to solitary confinement over numerous reprimands for minor infractions, such as getting out of bed early.
Mr Navalny, a fierce critic of Russian president Vladimir Putin, has been in custody since he returned to Russia in January after being attacked with a deadly nerve agent in August 2020.
He was sentenced to nearly three years in prison last month for failing to see his probation officer while undergoing treatment in Germany, where he had been airlifted after falling into a coma in Siberia. Mr Navalny has accused the Kremlin of being behind the attack, which it denies.
Mr Navalny said in an Instagram post uploaded by his team on Monday that he risks being put in solitary confinement as a punishment after he was given six reprimands in the prison colony in the past two weeks.
Rights activists and former prisoners have described the IK-2 colony about 120 kilometres east of Moscow as “one of the worst” prisons in Russia where inmates are constantly monitored and punished for the most minor perceived infractions.