Jailed Russian opposition leader Alexei Navalny says he has been transferred permanently to solitary confinement.
Mr Navalny said the move took place just days before a planned family visit, and was aimed at silencing him.
He was already facing 11 and a half years in prison on a range of charges, including for fraud, which he said are trumped-up.
The 46-year-old has long been the most prominent face of Russian opposition to President Vladimir Putin.
Mr Navalny was already being held in solitary confinement, also called a “punishment cell”, but he could only be held there for 15 days, according to a post of his Instagram account.
But in a series of tweets on Thursday, the high-profile Kremlin critic said he had been accused by prison officials of being an “egregious offender” and moved to a “cell-type room”. His visitation rights have also been curtailed.
He said his new confinement is “a regular cramped cell, like the punishment cell, except that you can have not one but two…