Police are currently responding to an incident in Greenwood Road, Mangere.
A male has been found deceased and a woman has been taken to Middlemore Hospital in a serious condition.
Police were unable to confirm reports it had been a shooting.
Kaniva News arrived at the intersection of Greenwood and Ascot road and found police had blocked Greenwood road from both ends.
Locals told Fairfax media the police operation was concentrated in a paddock near the road’s intersection with Ascot Rd.
An employee of Auckland Airport’s Holiday Inn, nearby, reportedly said Greenwood Road had few streetlights and was “not an area people usually gather in”.
She said it was lined with paddocks and construction sites, which were fenced off and only accessible to authorised people.
“It’s a dark road at night, and we don’t hear of any incidents there usually,” she said.