Poland has closed its investigation into the mass violation of its airspace by Russian drones on the night of September 9-10, 2025, after investigators failed to identify specific perpetrators. The investigation found that some of the downed drones contained Polish SIM cards.
This was reported by RMF24.
On the night of September 9-10, 2025, more than 30 Russian Gerbera drones violated Polish airspace. The unmanned aircraft entered from the east and came down in 27 locations across the country.
Investigators established that some of the downed Russian drones contained Polish SIM cards. It has not been disclosed whether the cards were stolen or obtained illegally, as this part of the case remains classified.
Military prosecutors spent several months trying to determine who was personally responsible for the attack. Marcin Kozak, a spokesperson for the District Prosecutor’s Office in Lublin, said the case was closed because the person responsible for the crime could not be identified.
“The investigation was closed because the perpetrator of the crime involving the violation of Polish airspace and thereby creating a threat to public safety was not identified,” Kozak said.
Most of the case files, including the reasoning behind the decision to close the proceedings, remain classified.
Investigators also examined the actions of the Polish military during the drone incursion. Prosecutors concluded that the armed forces acted correctly and in accordance with existing procedures, and that troops were entitled to use weapons and shoot down the targets.
That part of the proceedings was also closed, with no wrongdoing found in the actions of the military.
Former head of Poland’s Military Counterintelligence Service, General Maciej Materka, commenting on the conclusion of the investigation, said he did not believe the mass incursion of Russian drones was accidental.
“We cannot be naive and assume that these drones which entered Polish airspace were there by accident,” Materka said on RMF24.
He also said Russia was trying to influence not only through force, but also by shaping people’s perceptions and thinking. According to Materka, Poland is in a phase of hybrid warfare in which the adversary is using increasingly harsh methods of influence.
