Overview
- Security officials say a British citizen was arrested in Kyiv on Oct. 29 and remanded without bail on suspicion of unauthorized dissemination of defense data under martial law.
- Prosecutors allege he arrived in early 2024 to instruct troops in Mykolaiv, later moved to Odesa, and in May 2025 sent unit coordinates, training-site photos, and identifying details of service members to Russian handlers.
- The SBU says he offered his services in pro‑Kremlin online groups, was directed by an FSB officer, received instructions for an improvised explosive device, retrieved a pistol from a cache, and was paid $6,000 for one task.
- The UK Foreign Office says it is aware of the reports of a British national detained in Ukraine and is in contact with Ukrainian authorities.
- Ukrainian agencies reported parallel cases, including a 15‑year sentence for a Mykolaiv spotter and the exposure of a cleaner posing as a spy, while a Munich court convicted German‑Russian defendant Dieter S. of espionage and planned sabotage, sentencing him to six years.