Cocaine and mushrooms were imbibed in the room where PRINCE HARRY carried on, possibly fueling his nudie-flutie sexploits.

"Things got pretty crazy in Prince Harry's suite that night. Everyone was drinking and drugs were also being used by some people," an eyewitness told

"Some people were snorting cocaine.”

The new information comes two days after a Las Vegas tab reported that the nude photos of the Party Prince’s wild weekend were merely the beginning of the scandal and  “something gigantic” had not yet been revealed.

 “Some were already rolling on shrooms (hallucinogenic mushrooms) when they arrived at the party, and some were just high on weed. And that's exactly why no one there has come forward on the record…they don't want to be implicated for any illegal activities," the source said.

The source did not see Prince Harry use cocaine or any other illegal drugs but also was not with the Prince during the entire party.

As The ENQUIRER reported previously Harry’s antics were captured on video, which has been quietly shopped to a very limited number of people as the person with the video is extremely nervous.

“There is video of Harry partying naked with women in the Las Vegas hotel room,” a source familiar with the sitch divulged.