They say what happens in Vegas stays in Vegas.

But the internet has put paid to that mantra.

Nude photos alleged to be of Britain’s Prince Harry have surfaced on American celebrity websites.

The Prince is 3rd in line for the throne was pictured partying with a large entourage at a hotel in Las Vegas yesterday.

It is reported he then invited a group to his hotel suite where the party continued.

The photo obtained by TMZ purportedly shows the Prince standing covering his private area with another person standing behind him while he is looking at the TV.