 An explosion derailed a freight train for the second day in a row on a Russian region bordering Ukraine on May 2, sending both the locomotive and some cars off the tracks, authorities said. The incident occurred in the western Bryansk region, which borders both Ukraine and Belarus. Russian officials say pro-Ukrainian sabotage groups have made multiple attacks there since Russia sent tens of thousands of troops in Ukraine in February 2022. An unidentified explosive device went off near the Snezetskia railway station. There were no casualties, Bryansk regional governor Alexander Boggames wrote on Telegram. As a result of the incident, a locomotive and several wagons of a freight train derailed, he added, without saying who was responsible. TASS news agency, citing law enforcement agencies, said firefighters were working at the scene and two recovery trains had been dispatched to the area. Several prosecutors had begun an investigation into the derailment it added.