Two boys have died after a car crashed into a tree in Sydney’s south-west.

Police are searching for two other males who are believed to have fled the crash scene, as well as a dirtbike rider who appeared to have been trailing the car before the crash.

Emergency services were called to the crash at Maxwells Avenue in Ashcroft about 11.50am today.

Responding officers were told a grey Ford sedan collided with a tree and a power pole before two people allegedly exited the vehicle and fled the scene.

Two boys are dead following a horror crash in Ashcroft in Sydney's south-west this morning.
Two boys are dead following a horror crash in Sydney’s south-west this morning. (Nine)
Responding officers were told a grey sedan collided with a tree and a power pole before two people allegedly exited the vehicle and fled the scene. (Nine)

Assistant Commissioner Brett McFadden this afternoon told media said the vehicle had been travelling “well above” the 50km/h speed limit before the crash.

“The vehicle has lost control, has impacted with a telegraph pole, causing the Falcon to be separated in half,” McFadden said.

“Quite dramatically. Unfortunately, we believe that two males seated in the rear of the vehicle, aged between 10 and 15, were ejected from the vehicle and are deceased.”

McFadden said two other males are believed to have fled from the wreckage.

Assistant Commissioner Brett McFadden speaks at the Ashcroft double fatal.
Assistant Commissioner Brett McFadden confirmed two boys, aged between 10 and 15, died at the scene. (Nine)

“There’s now a concerted effort with combined resources from our commands supported by our aviation branch and the dog squad to identify and locate the driver and the front seat passenger,” he said.

Police have cordoned off a residential street while officers have been seen scouring nearby scrubland with the assistance of sniffer dogs.

It’s understood police may also be looking for the rider of a dirtbike who was seen trailing the vehicle.

“We’re looking for that driver to present himself so we can speak with him,” McFadden said.

“We don’t know what role if any he has played in the crash. It’s an active line of investigation.”

Ashcroft double fatal crash
Pictures show police cordorned off a suburban street. (Nine)
Two dead in horror crash in Sydney's south-west.
Officers were seen scouring nearby scrubland with the assistance of sniffer dogs. (Nine)

McFadden said the investigation was in its early stages but there was no indication the sedan was stolen. 

“Just seeing the scene from the side of the road looking at the absolute destruction that’s taken place to this vehicle,” he said.

“And the loss of two young lives being ejected from that vehicle, anyone who would have witnessed that crash will no doubt be traumatised by it.”

A crime scene has been established, which will be examined by specialist officers from the Crash Investigation Unit.

No other injuries have been reported at this time.

Anyone with information is encouraged to contact Crime Stoppers on 1800 333 000.

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