Sergey is an anarchist from Gomel. He was arrested on the night of 28-29 October 2020 close to Ukrainian border by Belarusian border guards along with Dmitry Dubovski, Dmitry Rezanovich and Igor Alinevich. He was charged with terrorism and illegal possession of firearms. According to prosecutor's office, he and his comrades organized several arson attacks in Soligorsk and Mozyr against state institutions.
Sergey previously spent 5 years in prison for carrying explosives, and after release, a case of violating the probation requirements.