Two people have died in a serious crash that closed State Highway 1 at Manakau, south of Levin this morning.
The crash, involving a car and a motorcycle, occurred on SH1 between Whakahoro and Kuku East Rds about 5.35am.
The motorcycle rider and pillion passenger died at the scene.
Waka Kotahi NZTA said the road is now open under stop/go traffic management and advise motorists to be patient as congestion eases.
Horowhenua mayor Bernie Wanden said the crash was tragic, and he hoped it would speed up necessary safety improvements on the highway.
"The road between Levin and Ōtaki is one of the most dangerous pieces of road in the country and has been for years.
"There's been plans and talks for a number of years in terms of making that stretch of road safer.
"Hopefully this signals that something is vital in that area in terms of safety."
He said efforts were being made to improve the safety of SH1 between Levin and Ōtaki.
"We've started on the SH58 improvements and that's in the pipeline.
"But I suppose it just illustrates again how essential that we have some work done on the expressway or making some safety improvements very quickly."