A 35-year-old man who was arrested by police investigating claims that Pippa Middleton's iCloud account was hacked has been bailed.
He was arrested at an address in the East Midlands on Saturday evening on suspicion of a Computer Misuse Act offence but he has since been released pending further inquiries, Scotland Yard said.
Pictures of the Duchess of Cambridge and her children, Prince George and Princess Charlotte, are reportedly among 3000 images taken from Kate's sister.
Private photographs were said to have been offered to The Sun and Daily Mail newspapers via encrypted messaging service WhatsApp.
The Sun said it had been approached by someone using a pseudonym and asking for STG50,000 ($A85,000) within 48 hours.
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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 - which saw images posted online.
In July it was announced that Middleton would marry her financier boyfriend, James Matthews in a society wedding in 2017, with William and Kate saying they were a "wonderful couple".
Hedge fund boss Mr Matthews got down on bended knee during a trip to the Lake District after they had dated for less than a year.
