Russia’s Federal Security Service announces the dismantling of an alleged Polish spy network in Kaliningrad

Russia’s Federal Security Service (FSB) announced on Wednesday that it had dismantled an alleged Polish spy network in the Kaliningrad exclave, claiming that at least 12 Polish and Russian citizens were involved.

According to the FSB, two agents from Poland’s Military Intelligence Service and Internal Security Agency were detained. Russia claims they collected and transmitted information about military personnel and Ministry of Defense facilities, as well as data on the region’s socioeconomic situation and migration and social policies.

Seven other Polish citizens and three Russian citizens, whom the FSB claims were in contact with Polish intelligence services, were officially warned that they could face charges of high treason, espionage and cooperation with a foreign state.

As part of checks conducted in 2026, Russian authorities revoked the visas of 14 Polish citizens and barred six others from entering Russia. Warsaw rejects the accusations, calling the FSB announcement “another provocation and an act of disinformation.”