Teenager, 14, dies after car rollover in rural NSW town

A teenager has died after a horror car rollover in north-western NSW.

Emergency services were called to Barrier Highway in the small town of Cubba, 25km west of Cobar, about 8.30am.

Officers found a car had left the highway and rolled in a single-vehicle crash.

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A boy, believed to be aged 14, was treated by paramedics and died at the scene.

The uninjured driver of the car, a woman aged 23, was arrested and taken to hospital for mandatory testing.

Two other passengers were uninjured, NSW Police said.

A crime scene was established and an investigation into the crash is ongoing.

The Barrier Highway was closed in both directions at Cubba.

Anyone with information and or dashcam vision in relation to the incident is urged to contact Crime Stoppers on 1800 333 000.