Source: Ukraine Conducts New Attack on Russian Railway Deep in Siberia

Ukraine's domestic spy agency has detonated explosives on a Russian railway line deep in Siberia, the second attack this week on military supply routes in the area, a Ukrainian source told Reuters on Friday.

The incidents appear to show Kyiv's readiness and ability to conduct sabotage attacks deep inside Russia and disrupt Russian logistics far from the front lines of Moscow's 21-month-old war in Ukraine.

The source, who declined to be identified, said the explosives were detonated as a freight train crossed the Chertov Bridge in Siberia's Buryatia region, which borders Mongolia and is thousands of kilometers from Ukraine.

The train had been using a backup railway line after an attack on a nearby tunnel a day earlier caused trains to be diverted, the source said.

Baza, a Russian media outlet with security sources, said diesel fuel tanks had ignited on a train using the backup route and that six goods wagons had caught fire. It reported no casualties and said the cause of the explosions was unknown.