Police were called to a large gathering in south Auckland on Saturday night as Tonga and Samoa fans celebrated their teams ahead of their highly anticipated quarter-final at the Rugby League World Cup.
In a statement, police said a large number of people and vehicles were present in the Māngere town centre and Ōtāhuhu on Saturday night.
"Cordons were put in place in both locations which assisted with crowd dispersal," a police spokesperson said.
Footage from the scene shows fans letting off fireworks and standing on roofs and bonnets of moving vehicles.
A Newshub camera operator said around 1000 people were present at the gathering in the Māngere town centre.
Counties Manukau West area commander inspector Matt Srhoj said on Saturday morning activity in south Auckland reached an unacceptable level this week when, following a tournament match played in the UK, the driver of a vehicle endangered the lives of a crowd of people in the Māngere town centre after an earlier assault.
"While there were no injuries in relation to this incident, we are lucky there were no fatalities," Srhoj said.
Srhoj added police will have a visibly increased presence in and around town centres in south Auckland, as they try to keep exuberant supporters and the local community safe.
"Our staff have been working with the local Member of Parliament, local board, business association, and community leaders to appeal to fans to keep their celebrations peaceful and respectful of the whole community," Srhoj said.
"The matches are being played on the other side of the world so the fan-fare activity is happening late at night and early hours here in New Zealand.
Srhoj said police have been experiencing large volumes of vehicles and people gathering around south Auckland town centres before and after the games and some of the behaviour has been dangerous to themselves or others.
Police have observed people unrestrained, bonnet surfing, and leaning out of moving vehicles, Srhoj said.
"We have seen some people waving large national flags so enthusiastically [that] these have created hazards, particularly when they obscure people running and dancing on the road between moving vehicles," Srhoj said.
Police worry this kind of behaviour could lead to serious injury or damage to property and added they're aware of complaints regarding excessively loud horns and external speakers, often attached as unlawful modifications to vehicles.
"People have been woken up in the middle of the night to excessive use of horns and excessively loud music from vehicle audio speakers, including speakers attached externally to vehicles as unlawful modifications," Srhoj said.
"This type of unlawful behaviour is having a significant impact of the wellbeing of local residents and businesses and it's unacceptable.
"While Police want everyone to have a safe and enjoyable time supporting their teams on the other side of the world, Police are appealing to fans to consider the community, and behave peacefully, lawfully, and to be respectful towards others."
