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A railway track in Lgov, Kursk region, was damaged by Ukrainian forces, according to the local mayor.
(sopuli.xyz)
Ukrainian Armed Forces strike railway tracks in Kursk's Lgov, says mayor
According to Klemeshov, four arrivals were recorded in the city. Two residential buildings and the railway tracks of the Lgov-Kyiv station were damaged. There was also a fire in a warehouse of one of the city's factories. No residents were injured.
“I do not recommend that anyone who left the city return until the situation has finally stabilized,” the mayor wrote.
A much safer (for the perpetrators) and effective way would be to unscrew a number of the locking bolts, which could be done at night, in silence, even with hand tools, on the outward side of the rails in a curve.
I live near a train station, and over a number of days they replaced hundreds of the traverses, in place, working at night. Simply unbolting a few tens I think would make the trick. Having a few cargo trains derail could wreak major havoc.
If combined with a couple of cuts to the track (easily done with a battery angle grinder, under a 100€) the damage would be amplified.