The goal of the suspects was to cause a train crash, the Polish prime minister has said Two Ukrainians have been identified as the suspected perpetrators behind two acts of sabotage targeting a railway line between Warsaw and Lublin on Monday, Polish Prime Minister Donald Tusk told the parliament on Tuesday. According to him, the suspects sought to provoke a train crash. A military-grade C4 explosive charge was used in a least one of the incidents, the prime minister said, adding that a 300-