Police are appealing for witnesses to a collision in the Spelga area of Newcastle on Saturday 6 January.
A silver Lexus overturned on the Slievenaman Road at around 11.30pm.
Both the teenage male driver and female passenger sustained injuries, and while serious are not thought to be life threatening.
Anyone who was in the area and who witnessed the crash or noticed the Silver Lexus travelling on the Slievenaman Road is asked to contact police in Newcastle on 101, quoting reference number 1536Â 06/01/18.