According to the tabloid Aftonbladet, 48-year-old military man and former customs officer Hans-Erik Sjöholm infiltrated the Left Party to spy on leading politicians like Lars Ohly and Jens Holm.
Holm tells Radio Sweden:
"I also know that my party has invited Säpo to a meeting to invite them to show us everything they know about this case."
"From my eyes, it’s so bizarre. We’ve been an open, democratic party and we have nothing to hide. If Säpo is generally interested in what I’ve been doing they can just give me a call or meet me for a cup of coffee.”
Sjöholm told Aftonbladet that he started his career as a Säpo infiltrator already in the early 1980s and worked with a number of different "handlers" at Säpo.
He first infiltrated right-wing groups but then, from the late 1980s, also infiltrated leftist movements, joining the Communist Left Party (VPK) which later renamed itself as the Left Party, or Vänsterpartiet.
He became particularly close to Jens Holm, a former EU parliamentarian and current Swedish MP.
The two men were neighbours and even had dinner together in Holm’s home.
Säpo has not commented on the revelations.