The hearing was to consider a motion by the federal prison authority to replace a controversial 2014 suspended sentence handed to Alexei Navalny with a jail term, TASS reported.
Allies of Navalny called on his supporters to gather outside the court on Tuesday morning, Radio Free Europe/Radio Liberty said.
This video was sent to Navalny’s organization for dissemination by a person detained in a Moscow police vehicle. It shows police manhandle one man as others remonstrate from behind a metal grille. Credit: Team Navalny via Storyful