Thames Valley Police is issuing a re-appeal for witnesses following a fatal collision in Peppard Common.
The incident happened between 2.30am and 6.30am on Sunday, July 11, on Wyfold Lane.
A man in his 40s was found with severe injuries and died at the scene.
His next of kin are receiving support from specialist officers.
The full circumstances are being investigated but it appears the man was involved in a collision with a vehicle, which then left the scene.
Senior Investigating officer Detective Sergeant Tony Jenkins of the Serious Collision Investigation Unit at Three Mile Cross said: “Sadly, a man died as a result of this incident.
“We are appealing again to anyone who might have witnessed the moments leading up to the collision or indeed the collision itself.
“We are also requesting anyone who was in the area between 2.30am and 6.30am to check their dash-cam recordings or CCTV.
“If you have any information, witnessed this incident or think you might be able to help with the investigation, please contact Thames Valley Police on 101 or make a report online quoting reference number 43210306555.
“You can also make a report completely anonymously to the independent charity Crimestoppers, by calling 0800 555 111.”