OSLO: Norwegian police said Monday they have launched an “aggravated corruption” investigation against a high-profile diplomat, Mona Juul, and her husband Terje Rod-Larsen, over the couple’s links to late US sex offender Jeffrey Epstein.

The police economic crime unit Okokrim said in statement that the probe began last week and that an Oslo residence was searched on Monday, as well as a residence belonging to a witness.

“We have launched an investigation to determine whether any criminal offenses have been committed. We are facing a comprehensive and, by all accounts lengthy investigation,” Okokrim chief Pal Lonseth, said.

Juul, 66, and Rod-Larsen, 78, played key roles in the secret Israeli-Palestinian negotiations which led to the Oslo Accords of the early 1990s.

Epstein left $10 million in his will to the couple’s two children, according to Norwegian media.