"The Prosecutor General's Office of the Russian Federation decided to recognize the undesirable activities of a foreign non-governmental organization created in the form of the public movement "Free Nations of PostRussia Forum", Poland," the supervisory authority said.

As the State Enterprise explains, the activities of the organization pose a threat to the foundations of the constitutional order and the security of Russia.

At the same time, its leaders are foreign citizens permanently residing in Lithuania, Great Britain and the Czech Republic and call for the violation of the territorial integrity of Russia, speaking with separatist nationalist slogans.