An air ambulance has taken a man to the hospital after a single-car crash on the A6121 in Bourne.
Lincolnshire Police closed off the road at about 3pm on Friday, November 22. They have urged drivers to avoid the area.
The man, who police believe was driving at the time, has serious and potentially life-changing injuries.
Anyone who witnessed the crash has been urged to call 101, quoting incident 152 of November 22.