Published: Aug 24, 2011 4:56 PM EDT

STOCKHOLM (AP) - A new book claims IKEA founder Ingvar Kamprad's youthful ties with Nazi groups extended beyond what he has admitted, saying Sweden's intelligence agency even set up a file on him.
Respected Swedish author Elisabeth Asbrink's "And in Wienerwald the Trees Remain" says a 17-year-old Kamprad joined the Swedish Nazi party in 1943, prompting the security police to set up a file on him. It claims Kamprad's contacts with the Nazi world continued until the 1950s.
Kamprad has previously admitted sympathizing with fascist Per Engdahl and attending Nazi meetings in 1945-48.
His spokesman Per Heggenes on Wednesday reiterated that Kamprad sees his Nazi involvement as the "biggest mistake" of his life, but wouldn't comment on specifics.

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