KIEV, November 21. /TASS/. Ukrainian radical activists in Kiev have set fire to the office of Viktor Medvedchuk, the leader of the Ukrainian Choice public movement, 112 Ukraine TV channel reports.

Several hundred activists from the Right Sector group banned  in Russia, as well as the Organization of Ukrainian Nationalists, smashed windows of the office, throwing flares and smoke barrels, the broadcaster reports.

Some time later they started putting out the fire themselves before a fire brigade arrived. Police officers could be seen nearby, but they did nothing to detain the picketers.

Earlier in the day, representatives of Ukraine's right-wing groups set fire to tires on Independence Square in central Kiev, to mark the third anniversary of the start of mass protests in Kiev. Clashes with police were reported, but there have been no reports about detentions.

Kiev marks the third anniversary of Maidan on Monday. In 2014, the Ukrainian president issued a decree to establish a public holiday — Dignity on Freedom Day — on November 21. The central part of the city has been cordoned off by the police since Monday’s morning, mass rallies and marches are being held there.