OSLO, Feb. 6 -- Norway's economic crime police unit, Oekokrim, has launched an investigation into former Prime Minister and Norwegian Nobel Committee chairman Thorbjoern Jagland on suspicion of aggravated corruption. The probe follows revelations from newly released documents linked to the late U.S. sex offender Jeffrey Epstein, Oekokrim said on Thursday.

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Oekokrim director Paal Loeseth stated that there are "reasonable grounds for investigation," given Jagland's positions as chair of the Nobel Committee and Secretary General of the Council of Europe during the period covered by the released files. The investigation will examine whether Jagland received gifts, travel, or lo...