A 26 year old has died five days after flipping his car on the A31 near Alton.
The driver, a man from Eastleigh, was taken to hospital with life-threatening injuries after the single-vehicle collision at 11.21am on Saturday, October 28.
Police have since confirmed he died on Thursday, November 2.
He was driving a black Seat Leon when he lost control between the Chawton roundabout and A339 Selborne Road junction on the east-bound carriageway.
The Hampshire and Isle of Wight Air Ambulance landed in a nearby field and officers confirmed a man in his 20s was taken to hospital with life-threatening injuries.
It is understood he was transported by air. A motorcyclist was reportedly first on the scene, and called the emergency services.
Police are continuing to appeal for anyone with information to come forward.
A Hampshire Constabulary spokesman said: "Were you driving in the area at the time? Do you have a dash cam fitted to your vehicle? If you have any information to assist, please get in touch with us as soon as possible.
"Anyone with information or relevant dash cam footage should call 101 or report online via our website, quoting reference 44230441281."
The A31 was closed in both directions between Chawton roundabout and the A339 and remained closed for several hours in the wake of the collision.
Delays of two-plus hours were reported by some motorists caught behind the road closure, with others choosing to drive across the central reservation to escape the traffic jam.