A motorcyclist has died after a crash with a truck north of New Plymouth this afternoon.
Police were called 2km north of the Awakino tunnel on State Highway 3 around 12:45pm.
Police have opened one lane at the scene of the crash, but this lane is for cars only, and police say motorists should still expect delays.
In the meantime motorists who need to travel south on SH3 towards New Plymouth could divert onto SH4 through Taumarunui to Raetahi and then onto Whanganui, however this could add five hours onto the journey, police say.
Police suggest motorists travelling north could diver the opposite way, and do no suggest using SH43 in this weather.
The serious crash unit is investigating the cause of the accident.
The motorcyclist's name will not be released until next of kin have been notified.
Police urge motorists to slow down and increase travelling distance from the car in front.