A man was taken to hospital by helicopter with serious to critical injuries after an terrain vehicle rolled in Tuai, in northern Hawke's Bay.
A Fire and Emergency NZ spokesperson said they received a call from ambulance to assist with an all terrain vehicle which had rolled.
A police spokeswoman said they were called to the crash at Tuai Main Rd at 11.55pm.
The man who had been on the vehicle had reportedly been in a critical condition, she said.