Up to 200 people were involved in a brawl between Tongan and Samoan league fans - featuring weapons including a machete, pole and sticks - that led to six arrests.
Tensions again flared between Tongan and Samoan fans last night after a young fan was seen burning a Samoan flag.
The burning triggered a crowd of stick-and-pole welding fans to fight each other in a carpark at Otara Mall.
Six people were arrested for disorderly behaviour and possession of offensive weapons, including a machete, in the South Auckland suburb, police said.