The two were transported to Westmead Hospital and Westmead Children's Hospital after a single-vehicle crash on the Peak Hill-Baldry Road about 15km from Peak Hill.

They are reported to be in a stable condition, in a statement from NSW Police Media released Friday.

Emergency services were called to the scene about 2.15 pm, police said, and were told the vehicle left the roadway and rolled before coming to a stop.

The driver, a 29-year-old man, suffered minor injuries and was taken to Dubbo Base Hospital for treatment and mandatory testing.

He has since been released.

Officers from Central West Police District established a crime scene, which was examined by specialist police from the Crash Investigation Unit.

An investigation into the circumstances surrounding the crash is underway, and police are urging anyone with dashcam footage from the area to contact Parkes Police on (02) 6862 999 or Crime Stoppers on 1800 333 000.

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