Sergej K arrested in Berlin for suspected Russian espionage

14 articles · Updated · Al Jazeera English · Apr 29

German prosecutors say Kazakh national Sergej K maintained continuous contact with Russian intelligence since at least May 2025, passing details on German military aid to Ukraine and photographing NATO convoys.
Authorities allege Sergej K also offered to recruit additional agents and provided information on companies developing drones and robotic systems for defense purposes.
This arrest follows a series of Moscow-linked espionage cases in Germany since Russia’s 2022 invasion of Ukraine, amid heightened tensions and accusations of Russian cyberattacks and sabotage attempts targeting Western support for Ukraine.

Are Germany's current security measures enough to stop Russia's hybrid war?

Is this wave of espionage the prelude to a wider shadow war in Europe?

How many more 'disposable agents' for Russia are operating undetected in Europe?

What specific military aid secrets did the captured agent leak to Russia?

What drives ordinary civilians to become spies for Russia for crypto payments?

How can defense companies protect their secrets from state-sponsored spies?