Just after 11pm, Tuesday 27 September, officers from Canobolas Local Area Command were conducting patrols when they observed a vehicle and turned around to follow it.

A short time later, police located the vehicle crashed off the roadway on Ophir Road, Orange.

A woman was located deceased inside the vehicle in a rear passenger seat. She is yet to be formally identified.

A male passenger was also located at the scene uninjured.

The driver and a third passenger fled the scene.

A critical incident team from Western Region will investigate the circumstances surrounding the incident.

That investigation will be overseen by the Professional Standards Command and all information will be provided to the Coroner.

No further details are available at this time; however, police are appealing for witnesses to come forward.

Police are urging anyone with information in relation to this incident to call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page: nsw.crimestoppers.com.au/ Information you provide will be treated in the strictest of confidence.

We remind people they should not report crime information via our Facebook and Twitter pages.