A St John spokesperson said the ambulance service was called at 7.47am. One ambulance, one managing vehicle and one rapid response unit were sent to the scene.
"We have assessed and treated one patient who was transported to Auckland Hospital in a critical condition," they said.
Police cordon at Juliana Way, Glendene in Auckland. Photo / Hayden Woodward
They referred all further queries to police.
Police said inquiries were continuing to determine how the person was hurt.