While climbing the ranks of the Soviet spy agency, he spent more than a decade working for British intelligence as one of its ...

Gordievsky was said to be Britain's most valuable spy, getting information from inside Russia's intelligence agencies.

FORMER KGB double agent Oleg Gordievsky, who defected from Russia to Britain, has died aged 86. Gordievsky, who is believed ...

Vladimir Putin dismissed as "nonsense" the claims made by the head of MI5, who accused Russia of trying to sow chaos in ...

Oleg Gordievsky, the long-standing KGB double agent who defected to Britain, has died aged 86. Gordievsky was said to be ...