Sergei was detained on August 30, 2020, in Minsk during a Sunday protest. His arrest followed a clash between police and protesters who were trying to prevent the detention of one of the protesters. He was later convicted of "violence against an officer of the internal affairs bodies."
In January 2024, he was transferred to another colony, most likely to IK-2.
According to human rights activists , he will be released in the summer of 2025.
