Three ambulances and one clinical manager were also sent to the fire.
"We assessed and treated one patient with serious injuries who was transported to Middlemore Hospital," a spokesperson from St John said.
Emergency services attended Nina Place, Manurewa property where a person died after the house caught fire yesterday. Photo / NZ Herald
Counties Manukau CIB's Detective Senior Sergeant Veronica McPherson said police were continuing to investigate the circumstances of a death in Manurewa on Saturday night.
"A scene guard remains in place at the Nina Place address, with a post-mortem to take place in due course.
"As part of this formal identification procedures are still to be carried out."