The General Prosecutor of Belarus opened a criminal case into what it called an act of terrorism carried out by an organized group against infrastructure of the Belarusian Railway, according to TASS.
The general prosecutor added that signaling facilities and other transport equipment were rendered "unusable."
The BYPOL group, which consists of former security officers who support the opposition in Belarus, said on Tuesday that a series of sabotage actions had targeted the railway system in Belarus, disrupting the movement of military trains in the country.
"Belarusians, today our country is drawn into a criminal and bloody war with the fraternal Ukrainian people on the side of the aggressor - the Russian Federation," wrote BYPOL in a Telegram message. "It is our duty and in our power to do real things to stop it, free ourselves from the occupation of Russian troops and restore the good name of our ancestors. 'Rail war' is the knowledge that we inherited, this is what we can do and what each of us can do."