Police Scotland is making inquiries into the activities of Andrew Mountbatten-Windsor, Jeffrey Epstein and Ghislane Maxwell during their time at Balmoral Castle.
TheDaily Express reportedthat the inquiry relates to allegations that women were trafficked to the royal residence in Aberdeenshire.
Sex offender Epstein -who died in 2019- and Maxwell, who wasjailed in 2022 for sex trafficking, are understood to have visited the castle with Mountbatten-Windsor, who has previously denied any wrongdoing.
Police Scotland said inquiries were at "a very early stage" and that it would be inappropriate to comment further.
Representatives of Mountbatten-Windsor have been contacted for comment.
The Royal family traditionally spend summer at Balmoral, where Queen Elizabeth II died in 2022.
Asked about the Express report, a Police Scotland spokesperson said: "We have received information and active inquiries are ongoing but these are at a very early stage.
"All inquiries are evidence led, with the needs of victim survivors at the heart of those inquiries.
"We would never confirm details of ongoing inquiries and it would be inappropriate to comment further."
In February, the force said it wanted to "speak to anyone with information" about Epstein's private jet using Edinburgh Airport.
At the time officers said they had not received any reports or complaints in relating to the trip.
Flight logs show Mountbatten-Windsor and Maxwellflew from Luton to Edinburgh on Epstein's private jetwith two other passengers on 1 September 2006.
An image believed to show disgraced financier Epstein and former socialite Maxwell at Balmoral was also released by US prosecutors during her sex trafficking trial.
It is thought to have been taken in 1999, when Mountbatten-Windsor reportedly invited the couple to stay at the castle.
Epstein and Maxwell were reportedly regular guests at royal residences in the late 1990s and early 2000s.
