A man has suffered moderate injuries on a farm property in Makirikiri Valley on Wednesday morning.
It's understood he was riding a side by side vehicle and suffered a broken ankle in a crash.
Police initially said the person was riding a quad bike on the farm and appeared to have gone down a bank and broken a leg.
St John was called at 9.44am and police arrived at the scene at 9.57am.
The Palmerston North rescue helicopter was sent to the location and flew the man to Whanganui Hospital.
A St John spokesperson said the patient was in moderate condition.
WorkSafe NZ had been notified.