A motorcyclist from Devizes died in a collision with a car in Lacock late on Sunday night.
Emergency services responded to 999 calls reporting the serious crash on the A350 at the junction with Melksham Road at around 10.20pm yesterday, 5 August.
The incident involved a Vauxhall Insignia and Kawasaki motorcycle.
A member of the public arrived on scene just seconds after the crash and provided CPR to the male motorcyclist until paramedics took over. Sadly, their life-saving efforts were unsuccessful.
The occupants of the Vauxhall suffered minor injuries.
Any witnesses to the collision who have not already spoken to police, or may have dashcam footage of these vehicles, should contact PC 1417 Hardman on 101.