A woman has died following a single-vehicle crash on the Hume Highway just north of Marulan on Sunday afternoon.
About 1.30pm, emergency services were called to the highway near the intersection with Wollumbi Road, Marulan, following reports that a car travelling north had left the roadway and continued over an embankment before hitting a tree.
Witnesses who saw the car go off the road went to the assistance of the driver, who was the sole occupant of the vehicle. However, the woman driver died at the scene.