The revelry surrounding the opening night of this year’s V Festival has been marred by the mysterious death of a 20-year-old man.

Police report that a man was found unresponsive and not breathing early Sunday morning in a tent near the festival’s Weston Park stage in Staffordshire, England. First aid was administered on the scene but he was later pronounced dead.

The death is being treated as unexplained and authorities are actively seeking information from anyone who may have seen the Shropshire man in the hours leading to the unfortunate event.

“We are very saddened by the tragic death of this young man and we are working to establish the full facts and build a picture of his actions in the few hours before his death,” a police official said, according to the BBC.

A forensic examination of the scene has already been completed and police are compiling a report for the coroner.

An autopsy is forthcoming.