A man has died following a single-vehicle crash at Byron Bay this morning.

About 3.15am a Volvo station wagon was travelling south along Bangalow Road, Byron Bay, when it failed to negotiate a left-hand turn, mounted a curb and struck a tree.

As a result the rear seat passenger, a 20-year-old local man, was ejected and died at the scene.

The driver, a 26-year-old man, and his 24-year-old male front seat passenger, both locals, were taken to Tweed Heads Hospital with non-life-threatening injuries.

A crime scene was established and inquiries into the cause of the crash will be carried out by officers from the Ballina Crash Investigation Unit.

Anyone with information about the crash is urged to contact Byron Bay Police on (02) 6685 9499 or Crime Stoppers on 1800 333 000.

A report will be prepared for the information of the Coroner.