A 24-year-old has been charged with the murder of a woman in Remuera today.
Police have just confirmed that the man handed himself in at Auckland central station at midday.
He also surrendered a weapon which police believe he used to kill the woman.
Detective Inspector Kevin Hooper said the man was not known to the woman - who will not be named until after a post-mortem examination tonight, where she will be formally identified.
The man is in custody.
Mr Hooper said the woman's body has been removed from the property. The occupants looked out the window and saw her on the lawn this morning and it was obvious she needed help.
Mr Hooper could not elaborate on her cause of death but said her injuries were evident.
She died at the scene.
Police have a good idea of who the woman is but until formal identification takes place tonight they are not giving any information about her age or personal details.
"One of our main focuses at present is identifying the deceased and, through our own staff and the agencies we work alongside, wrapping support around her family at this tragic time.
"We now believe we know who she was and are in the process of formally notifying her next of kin."
Police have been canvassing the area around the scene and will be working to ascertain whether there were any other incident in the area that could be related.
Mr Hooper said the residents of the property where the victim was found were understandably distressed by today's events and have been assisted by Victim Support volunteers.
A homicide investigation was launched after the woman's death on Shore Rd shortly before 11am.
It is understood the woman died after receiving fatal injuries in an attack.
A statement from police said the residents of the house called police after the woman ran there for help. They were not believed to be connected to the victim or the attack.
Detective Inspector Kevin Hooper said it appeared the woman was attacked nearby.
"We'd like to hear from anyone who may have seen a Caucasian woman in exercise gear on Shore Rd or nearby, any time between 10am and 10.50am," he said.
Earlier today, Auckland City Police Senior Sergeant Grant Miller said: "The body of a person has been found on a front porch of the house in potentially suspicious circumstances".
The latest information from police stated that the woman was found on the lawn.
Her body remains at the scene.
A St John spokeswoman said two ambulances were dispatched at 10.49am, and arrived minutes later.
However, the patient had already died from her injuries.
Police were working to contact the victim's family.
A resident of the street said it had been closed to residents and there was a large police presence there.
"A lot of cop cars have gone by and the street is closed," said the resident, who wished not to be named.
The road is closed outside the Palmers Garden Centre in Remuera, near the intersection with Orakei Rd.
The street was also closed at the intersection of Victoria Ave.
A police dog was brought to the scene and taken into the house.
Around 12 people were seen standing outside the residence on Shore Rd, most of whom were police officers.
The home neighbours local primary school St. Kentigern Primary.
- Additional reporting from Anna Leask
Motorists are advised to take care around the area.