Police have charged a 16-year-old boy with manslaughter over a fatal crash near Bourke in February.

The teenage driver had been charged with separate offences on 6 May relating to the incident.

A police spokesperson said that, following further inquiries, he was charged on 27 July with new offences including driving a vehicle with an illicit drug present in his bloodstream.

The rollover at Wier Road on 28 February killed a 17-year-old passenger and injured a 13-year-old and 14-year-old, as well as the driver.

All three surviving boys were taken to hospital, the 14-year-old to Sydney in a serious condition.

The 13 and 16-year-old have since been released from hospital, charged and remain before the courts.

Incident was sparked after officers were called to an alleged service station robbery at Narromine's Burroway Road at about 11:15pm

A police spokesperson said officers were told four teenagers left the scene in a SUV before they arrived.

"About 12.10am on Friday 28 February 2025, police were patrolling the Mitchell Highway, about 15km from Nyngan, when they attempted to stop the SUV," the spokesperson said.

"When it failed to stop, a pursuit was initiated however, it was terminated a short time later.

"About 12.45am, a pursuit was reinitiated on the Mitchell Highway, Coolabah, after road spikes were successfully deployed.

"About 1.30am, the pursuit was terminated after the SUV had rolled on Weir Road, Bourke."

Initial inquiries revealed the SUV was reported stolen from a home in the Blayney area on Wednesday 26 February 2025.

The 16-year-old is due to face a children’s court on Thursday 10 July 2025.