A quick google search for "derailed train, Bryansk" (сход поезда с рельсов Брянск) shows that this event was not today but 3 or 4 days ago.

Considering the state of the ground I think that the train derailed due to a landslide, not a sabotage operation. https://t.co/vzJBJGjFLG pic.twitter.com/RIwbV6x4k1

— Benjamin Pittet (@COUPSURE) April 25, 2022