An investigation is underway into a fatal collision involving a motorcycle and a car near Muswellbrook on Saturday afternoon, September 7.
Emergency services responded following reports a Harley Davidson motorcycle and a silver Holden Commodore collided on Wybong Road, Castlerock, just after 2.30pm.
The 47-year-old male motorcyclist died at the scene.
The five occupants of the vehicle, which included a three-year-old child, were treated by NSW Ambulance paramedics before being taken to hospital for treatment to non-life-threatening injuries.
Wybong Road was closed in both directions for a number of hours while specialist forensic officers examined the scene.
Officers from Hunter Valley Police District are investigating the circumstances surrounding the crash.
Anyone with information that may assist investigators 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.