A man has been admitted to hospital after being set upon by a group of men armed with machetes and hammers, in the South Auckland suburb of Otahuhu this morning.
The brawl began about 1 am outside the Steamboat Bar and Restaurant.
About 15 people went on a rampage smashing the windows of the restaurant and nearby cars.
They then began to attack a man, who was a patron at the Steamboat.
Police believe the offenders had been drinking at a nearby bar, but have not been able to track them down as yet.
The damage to the restaurant and cars is described as extensive.