A 22-year-old military engineer has died three days after he was involved in a truck crash during a defence exercise in Sydney.
Sapper Jordan Penpraze died surrounded by family at Sydney's Liverpool Hospital at 10.50am on Thursday, a military spokesman
The man was on life support after an open-top military truck overturned during a defence exercise in Sydney's Holsworthy Barracks on Monday, leaving injured soldiers strewn on the ground.
Metropolitan Crash Investigation Unit Commander Inspector Steve Blair said officers were confronted with an "horrific" scene as the crash injured all 18 people inside the vehicle.
The soldiers were injured when the truck careered off the side of the road and rolled several times, throwing them from the vehicle.
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"Things like this, with 18 people, a vehicle overturned, people being ejected from the vehicle, it will look somewhat horrific," Insp Blair told reporters.
He said officers investigated the cause of the crash, but it appeared speed may have been a factor.
At the time of the crash, the truck was travelling in convoy with a support vehicle carrying equipment, Insp Blair said.
He said police would take detailed photographs of the scene, looking for skid marks and examining the truck's brake.
The crash was something out of the ordinary for police, he said, as it was on a military site and included so many passengers.
Two of the injured were taken by air to Sydney metropolitan hospitals and 11 were transported by road, Defence said.
Another five defence personnel were treated on site before being transported to the Holsworthy Military Hospital.
