Polish Prime Minister Donald Tusk said an explosion on a major railway line that is used to transport military goods and aid to Ukraine was caused by an "unprecedented act of sabotage."

The weekend blast caused considerable damage to the Warsaw-Lublin railway line in eastern Poland, which borders both Ukraine and Russia and serves as a major logistics hub for aid.

Donald Tusk has vowed to catch those responsible for the incident which he says could have ended in tragedy.

Authorities say the blast happened on a line leading to the border with Ukraine.

Polish officials say a railway line has been damaged by an explosion that Prime Minister Donald Tusk has called an act of sabotage.

Warsaw is on guard against foreign espionage and operations linked to Russia’s war in neighboring Ukraine.

A train driver reported damage on the railway line in central Poland on Nov 16. Read more at straitstimes.com. Read more at straitstimes.com.

Nov. 17 (UPI) -- An explosion damaged train tracks between Warsaw and Lublin, Poland, Sunday, and the government said it was an act of sabotage from a foreign state.

Poland’s prime minister Donald Tusk has described the recent explosion on a key railway route between Warsaw and Lublin as “an unprecedented act of sabotage aimed at the security of the Polish state and its citizens.” The incident, which occurred near the village of Mika, was confirmed to have been caused by an explosive device placed on the track, destroying a section of the railway.

Donald Tusk visited the site of the explosion on the Warsaw to Lublin train line – a key route into Ukraine for aid.