Polish SIM cards found in Russian drones as Poland closes 2025 incursion probe without identifying perpetrators
Polish prosecutors have closed an investigation into a major Russian drone incursion in September 2025 after failing to identify individual perpetrators, Polish media reported on Oct. 8. Investigators also found Polish SIM cards inside some of the drones.
More than 30 Russian Gerbera drones entered Polish airspace overnight on Sept. 9–10, 2025, with drones coming down in 27 locations across the country, according to Polish broadcaster RMF24.
The military prosecution investigated the incident for months but was unable to identify the individuals personally responsible.
"The investigation was discontinued because the perpetrator of the offense involving the violation of Polish airspace and the resulting threat to public safety was not identified," Lublin District Prosecutor's Office spokesperson Marcin Kozak said, as quoted by Polish media.
Most of the case files, including the justification for closing the investigation, remain classified.
Investigators also established that some of the Russian drones contained Polish SIM cards. The publicly reported findings did not explain how the cards had been obtained or what they were used for.
Prosecutors separately examined the Polish military's response and concluded that troops had acted in accordance with established procedures. The use of weapons against the drones was justified, and no wrongdoing was found.
The September 2025 incursion prompted NATO consultations under Article 4 of the North Atlantic Treaty and the launch of the Eastern Sentry initiative to strengthen the alliance's eastern defenses.
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