Police are calling on rugby league fans to be responsible following reports of disorder and people acting dangerously.
There has been a huge presence, particularly in the South Auckland suburb of Otahuhu, over the last few days, where droves of Tongan fans have been celebrating their national team taking part in the Rugby League World Cup.
Although the celebrations - which have seen vehicles decked out in red and white flags lining the streets - have been mostly without incident, police confirmed they had been called out to some disturbances.
Four people were arrested about 11pm after what police called a "disorder incident'' involving Tongan supporters in Otahuhu.
Counties Manukau West area commander Inspector Naila Hassan said: "Overall, supporters have been well behaved. However, the actions of a small number of people have been disappointing.