About 10pm Tuesday night, the 32-year-old male staff member, was leaving the service station when he was approached by another man armed with a knife.

The staff member threw a drink at the armed man before he fled on foot through the medical centre car park towards Wheelers Lane.

Officers from Orana Mid-Western Police District established a crime scene and commenced an investigation.

The man is described as being Aboriginal/Torres Strait Islander appearance, mid-late teens, about 170cm tall with black hair and was wearing a black jacket with a hooded jumper, grey track pants and a black bandana face covering.

As part of inquiries, investigators are urging anyone with information - or dashcam footage from the area at the time - to contact Dubbo Police or Crime Stoppers on 1800 333 000.

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