WARSAW, Poland — Polish officials have accused Russian intelligence services of orchestrating an explosion on a railway line crucial for transporting aid to Ukraine. Prime Minister Donald Tusk made the allegations on Tuesday, stating that two Ukrainian nationals acted as agents for the Russian services. "The identified perpetrators are two Ukrainian citizens who have been cooperating with Russian intelligence services for a long time. Their identities are known," Tusk told lawmakers in the Polish parliament. However, he did not disclose their names.

The incident occurred over the weekend, damaging a segment of the rail line connecting Warsaw to the Ukrainian border. Another segment further south was also reportedly damaged. Jacek Dobrzyński, a spokesperson for Poland's secret services minister, indicated that evidence suggests the sabotage was ordered by Russian intelligence. "Everything indicates that the rail incident was initiated by the Russian secret services," he said during a press briefing following a meeting of the National Security Committee.

In response to the explosions, which Tusk described as an "unprecedented act of sabotage," Polish authorities have increased security measures. Army patrols have been deployed to inspect the safety of railways and other critical infrastructure in eastern Poland. The defense minister confirmed that an investigation has been launched into what prosecutors are calling "acts of sabotage of a terrorist nature" aimed at railway infrastructure and benefiting foreign intelligence.

Prosecutors stated that these actions posed an immediate danger of a land traffic disaster, threatening lives and property on a large scale. The investigation is also looking into a camera found near the damaged tracks on the Warsaw-Lublin route, which may have been used for surveillance.

The first explosion occurred near the village of Mika, approximately 100 kilometers southeast of Warsaw, while a separate incident damaged power lines near Puławy, about 50 kilometers from Lublin. Although passenger trains were halted at both locations, no injuries were reported. Tusk remarked that the explosion was likely intended to derail a train, emphasizing the severity of the situation. Repairs have since been completed at both sites, restoring normal operations.