About 2.35am on December 14, a silver Toyota Landcruiser utility was travelling on Sandy Creek Road, Mount Vincent - near Cessnock - when it left the road and collided with a concrete drain, before rolling on its roof.

Officers attached to the Hunter Valley Police District attended, along with NSW Ambulance paramedics.

The driver and the sole occupant of the vehicle - a 23-year-old male - died at the scene.

He is yet to be formally identified.

A crime scene has been established and investigations into the circumstances surrounding the crash are continuing.

A report will be prepared for the Coroner.