Pictures of the Duchess of Cambridge and her children are reportedly among 3000 images stolen from the duchess's sister Pippa Middleton by computer hackers.
The images, taken from an iCloud account, were offered to reporters by an anonymous seller via WhatsApp, The Daily Mail reports.
The paper said the images offered included some of the royal children, Prince George and Princess Charlotte, as well as wedding dresses and parties, the seller wanting to sell in the US because of UK privacy laws.
The alleged theft comes two years after a host of celebrities, including Hollywood star Jennifer Lawrence, fell victim to a hacker attack on the iCloud - which stores private photos from phones and computers online - images from which were later posted online.