Police can now advise that one person has died following a serious crash on State Highway 1, just south of Warkworth.
The person was initially assessed as critical but has sadly died at the scene.
Police can also advise that a second person is in a serious condition following the crash and will be transported to hospital.
An investigation will be commenced into the circumstances of the crash.
Police continue to advise motorists heading north and south to expect delays to their journeys this evening.