The Palmerston North Rescue Helicopter was dispatched to Otaki on Tuesday 17 January, to a serious motor vehicle accident on State Highway One.
Three vehicles appeared to be involved in the accident, with two occupants trapped in separate vehicles.
Palmerston North and Wellington Rescue Helicopters were sent to the scene landing on the highway.
The patients were extricated from the wreckage by Otaki Fire Service, using cutting gear, and stabilised by ambulance staff before being flown to Palmerston North and Wellington Hospitals respectively.
The patient airlifted to Palmerston North Hospital had life threatening injuries.