A teenage girl who was seriously injured when the car in which she was travelling left the road has died in hospital.
Two other people were hurt when the Honda Civic veered off the A83 near Tarbert, Argyll just before 8.30pm on Monday.
The 17-year-old passenger was taken to Glasgow Royal Infirmary with serious chest injuries, but died on Tuesday night, Strathclyde Police said.
The driver of the car, a 34-year-old man, is being treated for a neck injury at Royal Alexandra Hospital in Paisley, while a 33-year-old female passenger is in Glasgow's Southern General with neck and leg injuries.
Anyone with information about the crash is asked to call Constable Alan MacKinnon at Dunoon police office on 01369 763 001.