On the Warsaw–Lublin way there was a diversion act. What's a diversion act? Is Poland at risk?

Zdjęcie: Na trasie Warszawa–Lublin doszło do aktu dywersji. Co to jest akt dywersji? Czy Polska jest zagrożona? / PAP


Prime Minister Donald Tusk informed on Monday that on Sunday on the Warsaw–Lublin way between the towns of Życzyn and Mika there was a demolition of the railway track by the detonation of an explosive charge. Unfortunately, the worst guesses have been confirmed. On the Warsaw–Lublin way there was a diversionary act," the head of government reported. What's a diversion act?