Scuffles at Kyiv Pecherskiy court erupted after the police tried to take down tents put up by Poroshenko’s supporters outside the court building.
Police used pepper gas and batons to push back the crowd, leaving a few protesters visibly injured.
Witnesses complained Kyiv police responded to the situation with excessive force.
Among those assaulted was Kyiv Council representative Oleksandr Pohrebyskyi who later decried inadequate handling of the situation by the law enforcement team.
Pohrebyskyi said he was going to file a complaint and expect a police report at the next Kyiv City council session.