According to his aides, Alexei Navalny, a Kremlin critic who was incarcerated, has been moved from his prison colony into an unknown location.
Kira Yarmysh was the spokesperson for the Russian opposition leader imprisoned. She stated that the move raised concerns about his safety.
Antony Blinken (US secretary of state) previously dismissed the charges as questionable.
After new charges were brought , it was reported that he now faces “upto 15 more years.”
Ms Yarmysh spoke on Twitter Tuesday afternoon to confirm rumors that Mr Navalny would be transferred to a high security penal colony, but it was not possible to know when or how he will arrive.
She said, “The problem with him moving to another colony isn’t just that it is scarier.
“As long we don’t know where Alexei resides, he will remain one-on-one against the system that tried to kill him. Our main task is to find him as soon possible.”
Since his birth near Moscow in the Soviet Union, Mr Navalny has been Mr Putin’s most vocal critic.
After declaring them “extremist”, a Russian court banned groups that were linked to Mr Navalny in June.
He spoke out against the war in Ukraine and called the invasion stupid and based on lies.
While in jail, he urged fellow citizens to stage daily protests .
After returning from Germany, where he had spent some time recovering from nerve agent poisoning, he was arrested in Russia on January 20, 2021.
Russian opposition leader, who had fallen ill while flying to Moscow, was later discovered to have been poisoned by novichock during an election trip to Siberia.