Police have released video of a large brawl on Auckland's Karangahape Rd in an attempt to track down those involved.
More than a dozen young people were involved in the punch-up at around 2am on Sunday, which spread into the centre of the road.
At one point the youths start banging on a car that was stopped at the traffic lights, before police arrive to clear out the street.
It was one of several fights in the area that night. One man was hospitalised after a second fight on the same street.
More than 14 people were arrested for disorderly behaviour - two of them have been charged with wounding with intent to cause grievous bodily harm and assault with intent to injure.
Inspector Mark Benefield says it's "hugely frustrating" to see that sort of violence and says it was fuelled by alcohol.
"It only takes one punch and someone falls, knocks their head and dies. How many families would that affect?" he says.
"These brawlers are just one moment away from changing people's lives forever.
"Not only that, but spare a thought for the innocent people who are going about their business along K Road; the motorist waiting at the lights who finds the bonnet of their car being used as a boxing ring."
Auckland's CBD has a 24-hour alcohol ban and Insp Benefield says there will be a low tolerance for future brawls.
"Auckland is a fantastic city to enjoy at this time of the year but it's unacceptable that this level of violence occurs when people want to come into the city to enjoy themselves," he says.
Anyone who recognises anyone in the footage, or knows anything about the brawl, is urged to contact Auckland police on (09) 302 6557, or anonymously via Crimestoppers on 0800 555 111.