Later that night four Tongan supporters were arrested around 11pm after what police called a "disorder incident".
One of those arrested, a 21-year-old man, was charged with assault with a blunt instrument and appeared in the Manukau District Court today, a police spokesman said.
A 20-year-old was arrested and given a pre-charge warning for disorder, he said. An 18-year-old was arrested in relation to an assault but no charges had been laid.
The fourth person was arrested on an "unrelated matter".
Since the arrests more violence has erupted between the two groups. Footage filmed yesterday showed a man in a car apparently being attacked by a group holding Samoan flags.
Tongan wing and former Warrior Manu Vatuvei has called for fans to remain calm, while Samoan-Kiwi boxer David Tua has urged the two groups to remember that "we are all family".
Ahead of Saturday's game police have again called for calm.
Superintendent Sandra Manderson, national commander of major sporting events, said it was great to see the enthusiasm shown by fans but some had taken it too far.
"We want everyone to have a good time, but we won't tolerate people behaving in a way that spoils it for others," she said.