The body of a man killed "in the most brutal way" was found at a Bronze Age stone circle in the Peak District.
A man has been arrested on suspicion of murder after the 26-year-old victim was found at Nine Ladies Stone Circle in Stanton Lees, Derbyshire, on Monday afternoon.
The discovery came after the celebration of the summer solstice, which falls on the longest day of the year, on Sunday.
Isaac Clare-Watts, from Nottingham, was pronounced dead at the scene.
The 41-year-old man who was arrested remained in custody on Wednesday.
Read more from Sky News:
Tips for staying cool in heat
Tucker Carlson on Iran war
Detective Inspector Tony Owen from the East Midlands Special Operations Unit, who is leading the investigation, appealed for any witnesses who were at the solstice celebration between Friday and Tuesday to come forward.
He said: "I am urgently appealing for anyone who attended the summer solstice event over the weekend to please speak to officers as soon as they can.
"A young man's life has been taken in the most brutal way so it is vital that myself and the team build up a clear picture of the exact circumstances surrounding his death."
The stone circle is traditionally believed to depict nine ladies turned to stone as a penalty for dancing on a Sunday.
Det Insp Owen added: "We know that there have been a lot of people in the area of Nine Ladies Stone Circle over the weekend celebrating the summer solstice and this incident will undoubtedly be shocking and distressing to those who were present, as well as the wider community."
He also said that there will be increased police numbers at the site over the coming days and urged anyone with information to contact the officers.
Nine Ladies Stone Circle is part of a complex of prehistoric circles and standing stones on Stanton Moor.
Most of these are thought to date from the Bronze Age, around 3,000 to 4,000 years ago, according to the English Heritage website.
(c) Sky News 2026: Murder arrest after man's body found following summer solstice
Train driver who died in crash that injured 100 'passed red signal moments before collision'
World's top tennis players to protest during Wimbledon over prize money
Charles joins climate reception on hottest June day on record
Rachel Reeves aide urged big business to lobby Andy Burnham | Mark Kleinman blog
Six jailed over murder of innocent mother gunned down on flat doorstep
British grid operator cancels plea for more power as temperatures soar
Fan of TV serial killer Dexter 'dismembered and burnt bodies of two men in woods'
Labour MPs fear backlash over expected Burnham coronation
