UPDATE 9.42am: The Pacific Highway is closed northbound at Nambucca Heads at the site of a fatal truck crash which occurred earlier today.
One northbound lane has been open for most of the morning, however the highway has now been closed while the salvage and clean-up operation takes place.
Northbound traffic is being diverted at Bald Hill Road via the town of Macksville and can use Giinagay Way (the old Pacific Highway) to return to the highway at Nambucca Heads.
All southbound lanes remain open.
Northbound motorists should allow additional travel time along the diversion route.
For the latest traffic information, visitwww.livetraffic.com.
Update 8.00am: Police have reported that one of the drivers of the two B-Doubles involved has died at the scene. The driver's family has now been contacted by police.
It is believed one of the B-Doubles was parked in a designated stopping bay on the northbound side of the highway prior to the crash.
The male driver in the moving truck died at the scene while the driver from the parked truck was not hurt.
This is the first fatal accident on this section of highway since it opened.
Update 7.00am: One northbound lane remains closed, but traffic is now able to move around the accident.
Nambucca Fire and Rescue, SES, RFS, Ambulance NSW, Police and Transport for NSW all attended.
Hazmat crews are currently working to clean up a diesel spill.
6.00am: Reports are coming in that two trucks have collided along the Pacific Highway three kilometres south of the Nambucca Service Centre.
Emergency services are currently attending, and the northbound lanes are reportedly closed.
Live Traffic NSW has the accident occurring just after 5am, and says to expect delays if you're travelling via the Pacific Highway.
At this stage it would be advised to take Giinagay Way (Old Highway) if you're travelling northbound from the south of Nambucca.
This is the first major accident to have occurred on this section of road since it was opened in December 2017.
We will update with more details as we have them.