Police are appealing for witnesses following a serious collision in the north of the county.
The accident happened on the Kings Cliffe Road, near Wansford, in the early hours of Saturday, November 14.
The single vehicle collision happened at about 1.10am.
A silver Toyota MR2, driven by a 25-year-old man from Leighton Buzzard, was travelling towards Kings Cliffe when it left the carriageway and hit a tree.
The driver was taken to Addenbrooke’s Hospital, Cambridge, with serious injuries.
Witnesses or anyone with information is asked to call the Northamptonshire Police Drivewatch hotline on 0800 174615.