A Murray Bridge man is fighting for his life after crashing his motorbike at White Hill last night.
Paramedics and police were called to the Old Princes Highway, where a the motorbike had left the road and gone into the scrub, just after 9pm.
Its rider, a 24-year-old Murray Bridge man, was taken to the Royal Adelaide Hospital with life-threatening injuries.
The old highway was closed for several hours while major crash investigators studied the scene.
Anyone who witnessed the crash should call Crime Stoppers on 1800 333 000 or visit www.crimestopperssa.com.au.