Siarhei Zhyhaliou was arrested in connection with the "Black Nightingales" case.

On April 29, the state TV channel ONT broadcast a propaganda film titled "Children in the Crosshairs. Recruited by the Enemy". The film detailed the detention of seven teenagers for "cooperation with Ukrainian special services." Some of the minors are accused of committing an “act of terrorism” and “treason against the state.” 

The film stated that six teenagers had allegedly formed an "anarchist cell "Black Nightingales," which had been created by 16-year-old Ukrainian citizen Maryia Misiuk "under the guidance of the National Liberation Army of Ukraine". ONT employees allege that the teenagers united to commit sabotage in Belarus and subsequently in Russia. 

The detainees are Trafim Barysau, Siarhei Zhyhaliou, Dzmitry Zakharoshka, Anastasiya Klimenka, and Aliaksandr Pulinovich. ONT employees have stated that the young people gathered in Baranavičy to prepare for their first serious action: the collection of explosives and the subsequent detonation of the Baranavičy police department or prosecutor's office. It is unclear which articles the other five participants are charged with.