Thames Valley Police is appealing for witnesses after a road traffic collision on Wednesday, in which a pedestrian was seriously injured.
It occurred at approximately 4pm on the H7 Chaffron Way, near the entrance to Monkston Park.
The pedestrian, a 40-year-old man, sustained serious injuries and was taken by air ambulance to the John Radcliffe hospital in Oxford.
The vehicle involved was a silver Peugeot 206, driven by a 23-year-old man.
PC Alan Turnbull, of Thames Valley Police Roads Policing Department, said: “We would like to speak to anyone who witnessed the collision or who saw a man beside the road immediately before it.”
Anyone with information should contact either Sgt Scott Long or PC Turnbull via the 24-hour Police Enquiry Centre on 101. If you don’t want to speak to police or give your name, please call the Crimestoppers charity on 0800 555 111.