Three men are fighting for their lives in hospital after a truck accident on the Newell Highway about 50 kilometres south of Dubbo.
Emergency services worked through the afternoon to free a 50-year-old, 17-year-old and 18-year-old man, who were all trapped in the wreckage.
Police are appealing for witnesses of the single-vehicle crash.
It is understood the men worked for a Dubbo fencing business.
The light rigid truck was heading north on the Newell Highway when it left the road at Tomingley and crashed into a tree about 1.30pm yesterday.
It is understood the tree then fell on the vehicle.
Rescue workers managed to free the men about 4.30pm and they were taken by helicopter to Westmead Hospital in a serious condition with multiple injuries.
Police, Rural Fire Service, ambulance, SES and VRA rescue unit vehicles lined the highway and there were two ambulance choppers at the scene waiting to take the crash victims to hospital.
There were more than 10 rescue vehicles at the scene.
It took rescue workers about three hours to release the men from the vehicle.
The highway was closed for several hours and cars and trucks were backed up in both directions.
Anyone who might have seen the truck, which was carrying fencing materials, before the crash is urged to contact Dubbo Police via Crime Stoppers on 1800 333 000.
All information will be treated in strict confidence.
This story Administrator ready to work first appeared on Nanjing Night Net.