A railway line in Poland was damaged by an explosion, which Prime Minister Donald Tusk labeled an unprecedented act of sabotage. The incident occurred on the route connecting Warsaw and Lublin, vital for transporting aid to Ukraine. Tusk emphasized the seriousness of the act, stating it directly threatens Polish state security. Prosecutors have classified the explosion as a 'terroristic' act, likely orchestrated by a foreign intelligence agency. Polish officials, including the Interior Minister, confirmed that evidence collected at the site supports this claim. The damaged route is heavily used, with 115 trains operating daily. Authorities are actively investigating and anticipate a swift identification of those responsible.