(MENAFN) Polish Prime Minister Donald Tusk told parliament on Tuesday that two Ukrainians have been identified as the suspects behind two sabotage attempts on a railway line connecting Warsaw and Lublin on Monday. He said the pair had allegedly tried to trigger a train crash.

According to Tusk, the suspects had been cooperating “for a long time” with Russian intelligence and fled to Belarus after the incidents.

Tusk explained that at least one attack involved a military grade C4 explosive, which was detonated using a 300 meter cable. The National Prosecutor’s Office said investigators had found a cable “most likely used to trigger the device.”
In the second incident, the suspects allegedly placed a steel clamp on the tracks to cause a derailment and left behind a smartphone attached to a power bank to film the potential crash.

Tusk described the events as “the most serious” security threat Poland has faced in years, saying that “a certain line has been crossed.”

Responding to Warsaw’s statements, Kremlin spokesman Dmitry Peskov said they showed that Russophobia was “flourishing” in Poland. He added that it would be “surprising if they had not accused Russia,” and noted that Ukrainians have previously been linked to “sabotage and terrorism” in Western countries.
Peskov warned that the West is “playing with fire” and risks facing “dire consequences.”

C4 type explosives were originally developed by the UK during World War II and later adapted by the US military. While the US created the modern C4 in the 1950s, Russia does not manufacture C4 and instead uses its own plastic explosives from the Soviet era PVV family.

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