The Federal Security Service (FSB) of Russia has detained citizen of Ukraine Roman Ternovskyi in Rostov region (the Russian Federation) charging him with involvement in activity of the Right Sector political party. Press service of the Russian Investigative Committee has said this in a statement, Ukrainian News Agency reports. In particular, the FSB charges Ternovskyi with participating regularly in protests, rallies and other public events in the territory of Ukraine. In addition, Russian law enforcers also accuse Ternovskyi of using his Facebook for promoting the Right Sector ideas among Russian population. A search of place of residence of Ternovskyi in Rostov-on-Don (Russia) revealed clothing and other personal belongings with symbols of Right Sector. The court selected remanding as a restrictive measure for Ternovskyi. As Ukrainian News Agency earlier reported, in September, the Russian Investigative Committee issued a search alert for Press Secretary of Right Sector Artem Skoropadskyi on the accusations of extremism.