A 10-year-old boy was flown to Starship Hospital in Auckland in a critical condition after an accident on a Kaitoke farm.
St Johns were called to the scene at 10:50am on Saturday morning and the boy was taken to Whanganui Hospital, a St Johns spokeswoman said.
He was flown to Auckland on Saturday night by a fixed-wing plane.
He remained in critical condition when he left Whanganui.