Police had received reports of "an altercation" and found a man in a critical condition with stab wounds.
Emergency services carried out CPR immediately. However, the man died at the scene.
A homicide investigation was immediately launched and a scene guard was on site overnight.
Roads were cordoned off and up to 25 police officers in masks were at the scene. Officers will remain at the scene today carrying out further inquiries, police said.
Police say a post-mortem examination will be carried out on the victim later today.
Police will not be in a position to confirm the victim's identity until formal identification has been completed and family have been notified.
The incident comes after a man in his 70s was shot dead in Ōtahuhu on Sunday night.
A homicide investigation is under way and a post-mortem examination would be performed, a police spokesperson said.