A section of State Highway 1 is blocked after a serious crash near Kaikoura this morning.
Emergency services were called at 9:30am after a truck and ute crashed on a stretch of road just north of the Clarence river.
Rescue helicopters have airlifted one person in a critical condition to Wellington Hospital and another in a serious condition has been airlifted to Christchurch Hospital.
A spokesperson for Fire and Emergency New Zealand has told 1 NEWS that three helicopters in total have been dispatched.
The section between Clarence and Kaikoura remains closed and police are asking motorists to avoid the area.