The arrest in Brandenburg comes as Germany remains on high alert for acts of sabotage linked to the Russian invasion of Ukraine. Berlin has pointed to Moscow's involvement in a recent incident where an explosive-laden drone was discovered near a Ukrainian cargo plane at Leipzig airport.
Prosecutors said Vadym Y. had been in contact with a middleman since July 2025, gathering intelligence from Germany related to the war. Details of the alleged espionage include information on the production of armored vehicles, ammunition and explosives, as well as data on personnel and military facilities at locations tasked with securing NATO's eastern flank.
The case underscores ongoing concerns about Russian intelligence activities inside Germany, even as Berlin expands the powers of its spy agencies. No further details about the suspect or potential charges have been released.