Police are appealing for witnesses following a collision near Eyemouth in the early hours of this morning (Sunday).
The collision happened around 4.35am on the A1107 between the A1 and Eyemouth when a black Vauxhall Corsa heading north came off the road.
The 20 year old male driver was taken to Edinburgh Royal Infirmary to be treated for serious injuries.
The two passengers, a 30 year old man and a 17 year old female were treated for minor injuries at Borders General Hospital.
Sergeant Kosmas Papakyriakou from Road Policing said: “We are keen to hear from anybody who witnessed this collision to help us piece together the circumstances. Anyone with information should contact police on 101.”