One person has died and another is critically injured following a crash on north of Levin this afternoon.
Emergency services were called to the crash on State Highway 1 between Kawiu Rd and The Avenue just before 1pm.
One person died at the scene with another airlifted to Wellington Hospital in a critical condition, police said.
No other vehicles were involved in the crash.
NZ Transport Agency Waka Kotahi (NZTA) said the road remained closed between Koputaroa Rd and Avenue North Rd.
The Serious Crash Unit was at the scene, the agency said.
Diversions are in place and motorists were urged to avoid the area and to expect delays.