FILE - Russian opposition leader Alexei Navalny is seen on a TV screen as he appears in a video link provided by the Russian Federal Penitentiary Service from the colony in Melekhovo, Vladimir region, during a hearing at the Russian Supreme Court in Moscow, Russia, on June 22, 2023. The Kremlin on Tuesday Dec. 12, 2023 bristled at the U.S. voicing concern about Navalny who has vanished from his prison colony, denouncing it as “inadmissible interference” in the country's domestic affairs. Worries about Navalny, who has been serving a 19-year term on charges of extremism in a penal colony in western Russia spread Monday after prison officials said he was no longer on the inmate roster, possibly indicating his transfer to another penitentiary. (AP Photo/Alexander Zemlianichenko, File)