Emergency services were called to the Pacific Highway at Raleigh just before 6am today (Wednesday) after a B-Double left the road and crashed into a creek.

The driver, who has not been identified, died at the scene.

Traffic is affected with the truck in the median lane of the highway and one northbound and one southbound lane closed.

Drivers are asked to exercise caution and also to allow extra travel time.

Officers from Coffs / Clarence Police District are at the scene and investigating the circumstances surrounding the crash.

A report will be prepared for the Coroner.

Anyone with information about this incident is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au.

Information is treated in strict confidence. The public is reminded not to report crime via NSW Police social media pages.