A group of six motorcyclists were riding south on the Olympic Highway at Koorawatha, 30 kilometres from Cowra, at about 5.50pm when one rider came off his motorbike.

The 39-year-old man slid about 50 metres along the roadway before being hit by a northbound SUV.

Emergency services attended but he died at the scene.

Police established a crime scene and have commenced an investigation into the incident.

The driver of the SUV, a 34-year-old man, was taken for mandatory testing.

A report will be prepared for the information of 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 information via NSW Police social media pages.

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