A truck driver has died following a horror crash on the Pacific Highway at Nabiac.
A B-Double rolled just before midnight, with a second truck then colliding with the wreckage.
One of the drivers, a man aged in his 60's, died at the scene.
The second driver was airlifted to the John Hunter Hospital in a stable condition by the Westpac Rescue Helicopter, suffering a head injury.
The crash blocked the highway northbound for several hours.
A contra flow is currently in place allowing traffic to get past.