A 'massive' brawl broke out in the stands at Eden Park last night during the Super Rugby match between the Hurricanes and Blues.
An argument between opposing fans escalated into a wider melee about 8.45pm.
Witness Rory O'Sullivan told Fairfax Media the scrap began when a Blues supporter started shouting loudly toward the field and a Hurricanes fan took exception to it.
"All of a sudden he was involved in a struggle, and punches were flying," O'Sullivan told Fairfax media. "There was beer flung at them as they were scuffling.
"Loads of people around were quick to try and stop the fight. It was over pretty quickly, but it looked pretty nasty."