Police are investigating a serious crash at Duncan on Kangaroo Island.

About 9.45am today (Friday 22 July), police and emergency services were called to Morgans Road after reports that a gold Holden ute had left the road and crashed into a tree.

The driver, a 32-year-old local man was flown to the Flinders Medical Centre in a serious but stable condition.

The crash may have occurred several hours earlier.

Police are asking anyone who witnessed the crash, or who may have captured the vehicle on dashcam footage to contact Crime Stoppers on 1800 333 000, or online at www.crimestopperssa.com.au