Police is investigating the theft of a digital camera featuring private photographs of Prince William and his girlfriend
Kate Middleton.
The camera is understood to belong to Kate Middleton's younger sister Pippa and was reported missing from Kensington and Chelsea at midday on Friday.
The pictures, on a flashcard in the camera, feature the future king and Miss Middleton, both 26, during a recent holiday in Mustique in the Caribbean with her family.
Among the 40 pictures, a bikini-clad Miss Middleton is seen doing yoga-type exercises on the beach and taking a swim with the prince, who is pictured in others wearing a woman's hat and striking a camp pose. Others feature the pair canoodling.
The pictures were recovered after two men giving false names attempted to sell them for more than L50,000 to a tabloid newspaper within an hour of the camera being reported missing.
The pair insisted they had found the flashcard in a gutter in Maida Vale in North West London when they met a reporter from the Sun newspaper to show him the pictures.
The reporter seized the memory card and colleagues took secret pictures of the pair, which they handed over to police.
Scotland Yard detectives - reportedly accompanied by Royal protection officers - arrested a 25-year-old man in a raid on a West London address on Sunday.
He was questioned on suspicion of committing theft and money laundering offences for around 10 hours before being released on bail, which another man is still being sought.
A Royal source was quoted as saying: "William was very concerned to hear that private pictures of him and the Middleton family had been stolen."