Emergency services were called to Putty Road just before 2.30pm on Sunday after a motorcycle crashed into a guard rail.

The male rider died at the scene. His age is not yet known.

Police from Hunter Valley Local Area Command have established a crime scene and are investigating the circumstances surrounding the incident.

A report will be prepared for the Coroner.

Meanwhile, Putty Road has reopened in both directions.

Motorists can use the road to travel between Richmond and Singleton again.