While Prince William has made headlines this week for coming to the rescue of an injured tourist in Wales, his brother is making headlines for naughty behaviour in Las Vegas.

Prince Harry is known to enjoy the nightlife and he didn't hold back during last Friday's party with some high rollers. The web site TMZ has published photos depicting Harry, naked in his VIP suite during a game of strip billiards in a room full of friends.

TMZ claims the Prince, along with his entourage, went down to the hotel bar, met a bunch of women and invited them up. Some of those inside used their smartphones to take photos including one that appears to show a completely naked Harry, cupping his private area, while a topless woman stands behind him.

"We are not commenting specifically on the photos," a spokesman for the prince said.

That same weekend, Harry was photographed partying with Olympian swimmer Ryan Lochte in Vegas.