KIEV, July 13. /TASS/. Activists of Ukraine’s Right Sector, a radical organization banned in Russia, have hauled down the European Union flag at the building of the Lviv region administration and hoisted their black-an-red flag instead, Radio Liberty said on its Twitter account on Monday.

Currently, Right Sector activists are rallying at the Lviv region administration building demanding a fair investigation of the development in the city of Mukachevo in Ukraine’s Trans-Carpathian region. They say President Petro Poroshenko was wrong to place responsibility for the incident on the Right Sector without court ruling. Apart from that, they demand the resignation of Ukrainian Interior Minister Arsen Avakov.

On Saturday, July 11, gunmen of the Right Sector extremist group allegedly opened fire from small arms at their opponents while discussing the "redistribution of spheres of influence" in Mukachevo. The extremists later opened fire from rifles, heavy machine guns and grenade launchers at the police who arrived at the scene. They destroyed several police vehicles and also set fire to a traffic police checkpoint and a petrol station. As a result, three people were killed and 11 more were wounded. Some of the gunmen were later blocked in a wooded area near the city. The Right Sector says two of its gunmen were killed and four wounded. Prosecutors described the incident as a terrorist attack.