Police say they will be going door-to-door today making enquiries in a West Auckland neighbourhood where a woman was killed yesterday.
Officers were called to a property in Royal Road, Massey, around 5.45pm.
Members of the public have said they heard a woman screaming, and witnesses have described seeing a shirtless man holding a knife.
Police have not confirmed those reports, but said the victim died at the scene.
At least a dozen armed officers attended the scene and had appeared to be searching for a weapon.
The local badminton centre was locked down for two hours after the alarm was raised.