Russian opposition politician Aleksei Navalny, who is serving a total of 19 years in prison on extremism and other charges, has been placed in a punitive solitary confinement for the 23rd time since August 2022. A post on Navalny's X (formerly Twitter) account said on November 21 that he was placed in solitary confinement for 15 days for an unspecified violation. Navalny finished his previous solitary confinement a day earlier. Including the latest solitary confinement assignment, the Kremlin critic has faced a total of 266 days in punitive incarceration since August last year. To read the original story from RFE/RL's Russian Service, click here.