In another quad bike incident, a 2-year-old boy was knocked unconscious last month in Central Hawke's Bay.
The incident happened on a coastal property near Clareinch Rd, Omakere.
The boy had regained consciousness when he was flown from Mangakuri Rd to Hawke's Bay Hospital by the Lowe Corporation rescue helicopter. He was transported with a 46-year-old man suffering shoulder injuries. The toddler and the man were later discharged from hospital.
A Carterton farmer was also found lifeless beneath his quad bike in an open drain last month.
Masterton police Sergeant Chris Megaw said workmates discovered Hamish McLennan under the machine, hours after the father-of-two was last seen that morning when he set out to spray weeds on his Woodlea dairy-farm property.
Mr Megaw said the 57-year-old farmer had "lost control on the bank of an open drain", toppled in, and was trapped under his machine.