Surrey Police have launched a murder investigation following the death of a man involved in a serious assault on the Shell Service Station at Cobham Services on the M25. Officers were called to the forecourt at Cobham Services (between Junctions nine and 10 of the M25) at 3.15pm on Monday June 26 after reports of a fight between two groups of people, who it is believed knew each other. A 20-year-old man was assaulted by two men and received substantial head injuries. He was flown to St George’s hospital by air ambulance, but has since died.

The two men left the scene in a white van, which was the subject of an earlier appeal. The van was found later abandoned in Chessington, and has been recovered by police.

Senior investigating officer Detective Chief Inspector Jo Hayes said: "This was a horrifying attack at a busy petrol station on the M25, and I am sure that there are people who saw what happened but have not yet spoken to my officers.

"I would like to speak to everyone who refuelled at the petrol station, or visited the shop, between 3pm and 3.30pm on Monday 26 June.

"In particular there is a man shown in the store on CCTV wearing military or camouflage clothing who could have very valuable information for the investigation. If this person is you, please come forward."