Two truck drivers died in a fiery head-on collision after one veered onto the wrong side of Picton Road on Friday morning.
A car carrier and a B-Double collided on a bend on Picton Road just north of the intersection with MacArthur Drive at around 5am.
It is believed the B-Double was travelling north and the car carrier south when the accident happened along a stretch of Picton Road that has no concrete median.
The accident caused the B-Double to jack-knife across both lanes and the 31-year-old driver was thrown from his vehicle.
He died at the scene.
Initial reports from police said the driver of the car carrier – which had been engulfed in flames – “has not been found”.
Once fire-fighters had been able to extinguish the blaze consuming the truck, police examined the burnt-out cabin, locating the body of the second driver, a 40-year-old man.
"It was quite an intense fire, and it took us a while for the fire to be extinguished, and then it took a while to determine that the male was in the vehicle,” Inspector Michael Bright said.
Inspector Bright said both drivers were at the beginning of their shifts, and it was dark and wet when the crash occurred.
"It was 5am, so it was still night-time,” he said.
“I believe it was raining, and you're coming down a hill into the bridge area, so it would have been slippery as well.”
The car-carrier was owned by Campbelltown City Car Carriers, and Steve Cole, from the company, said it was “devastating”.
“I just don't know what to say. It's not just an employee of our company, he was a family member,” he said.
“All my staff are family members.”
A dog that had been travelling in one of the trucks somehow survived the crash, and was being cared for by a veterinarian.
The last fatal accident on Picton Road occurred in February last year, when the driver of a 4WD was clipped from behind and pushed into oncoming traffic.
Between 2009 and 2013 Roads and Maritime Services spent $53 million on safety improvements at a number of locations along Picton Road.
It is understood several areas near the scene of the accident had concrete medians installed as part of this safety upgrade.
The accident closed Picton Road in both directions for most of Friday with light vehicles diverted around the scene while heavy vehicles were told to use Appin Road.
In a separate incident, a three-car accident held up morning peak hour traffic northbound on the M1 Princes Motorway at Cataract.
No one was injured and one lane of traffic was closed for around an hour.