An Auckland family is preparing to turn off their father's life support system after a "tragic'' accident with a roading grader earlier today.
Mark Vernon was operating the grader, a construction machine with a long blade used to create a flat surface, on Maxted Road, Ramarama when he lost control of the machine and was forced to jump from it.
In the process he hit his head and was rushed to Middlemore Hospital where he is on life support in intensive care.
His son, Bob, who was on the scene at the time of the incident said he hadn't looked at the machine and didn't know what had gone wrong.
"The grader never hit him. It was a runaway machine and the call was made to jump from it.''