In 1955, Ingeborg Lygren was sent to Moscow as a secretary at the Norwegian embassy.

The 42-year old woman from Sandnes, near Stavanger, had been working as an interpreter at the Norwegian Border Commissioner of the Norwegian-Russian border in Kirkenes for the past year. Her knowledge of Russian and Polish were valuable for the Norwegian state. The relationship between Norway and the Soviet Union was tense and in Kirkenes, the Norwegian armed forces were in full swing building up its eastwards looking intelligence work.

Lygen was sent to the Soviet Union to serve both the Norwegian Ministry of Foreign Affairs, the Norwegian intelligence services as well as the CIA. Her job was to act as link between the CIA and Russians who had been recruited as agents, pretty much the same task Berg had.

Lygren was to send letters arriving in Moscow via Norwegian courier mail and was also to manage dead post drops, a demanding and difficult job.

The information Lygren contributed to collecting made the CIA very satisfied at first. However, unlike Frode Berg, who was arrested two years ago by Russian counterintelligence when he was to send money via regular mail in Moscow, Lygren was arrested by her own upon returning to Norway.

The heads of the police intelligence services suspected her of spying for foreign powers following KGB defectors’ revealing of moles in western intelligence. The case was later dismissed. Even later, Gunvor Galtung Haavik was revealed to have been the real spy.