Officer offered details of operation by HMS Trafalgar

File picture of British nuclear submarine, HMS Trafalgar. Credit: Ministry of Defence/PA Wire

Submariner Edward Devenney pleads guilty to collecting top secret Royal Navy codes and seeking a covert relationship with a foreign power.

Devenney offered details of an operation by HMS Trafalgar and sailing dates of two nuclear submarines to men he believed were Russian spies.

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Submariner jailed over secrets

Submariner Edward Devenney has been jailed for eight years for trying to disclose secret movements of British nuclear submarines to MI5 agents posing as Russian spies.