A man in 60s, who died after being bashed in South Auckland, was reportedly a good Samaritan trying to stop a street fight.
Emergency services were called to the corner of Elliot St and Great South Rd in Papakura around 2.40am.
The injured man was taken to Middlemore Hospital in a critical condition.
Detective Senior Sergeant Richard O'Connor says the man has since died from his injuries.
There are claims on social media that the victim was trying to prevent a younger man from being beaten up when he was assaulted.
The duty manager of the nearby Coyote Bar and Gaming Lounge told the Herald the bar was closed when the assault happened but police came to speak to staff and look for evidence this morning.
Two people were arrested for assault. However no charges were laid and they were later released.
Police are continuing with their homicide investigation.
The family of the man who died have been notified and are receiving support from Police and Victim Support.
Anyone with information about the incident or anyone who was in the area at the time, is asked to contact the Operation Cyclone team on 09 295 0200.