Serhii Krasiuk is a Ukrainian citizen and a serviceman of the Azov Special Operations Brigade of the National Guard of Ukraine, holding the rank of senior sergeant. He was presumably captured in Mariupol in April 2022.
On 15 October 2025, Serhii Krasiuk was added to the Russian Federal Financial Monitoring Service's list of extremists and terrorists.
In March 2026, Krasiuk's case was transferred to the Southern District Military Court. By 17 April 2026 at the latest, Serhii Krasiuk had been found guilty under Part 2 of Article 205.4 of the Russian Criminal Code ('Participation in a terrorist community'). The court sentenced him to 6 years' imprisonment.
