A woman has died following a single-vehicle crash in the state’s north west yesterday.

About 5.30pm (Monday 9 November 2015), a Holden Rodeo towing a horse float was travelling east on Coonabarabran Road, Caroona, when it crossed to the incorrect side of the road and hit a tree.

Witnesses attempted to assist the driver, a 69-year-old woman but she died at the scene.

Officers attached to Oxley Local Area Command attended and a crime scene was established.

The vehicle and trailer have been towed for examination.

A report will be prepared for the Coroner.