Police, Rural Fire Service and NSW Ambulance all rushed to the scene after receiving triple-0 calls just before midday saying there had been a collision on the Sydney Road (Great Western Highway) outside the Raglan service station.

Two men, aged 27 and 53, were treated at the scene by paramedics before the 53-year-old was transported to Orange Base Hospital suffering head injuries.

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The 27-year-old was treated at the scene for bruising to the forearm but did not require a transport to hospital.

Police remain at the scene, speaking to witnesses.

Traffic in the area remains unaffected with both lanes of the highway open and traffic able to pass the accident site.