A brawl involving about 20 people erupted after a premier club rugby game in West Auckland this afternoon.
Police say they were called to the fight at Shadbolt Park in New Lynn about 4.30pm.
"St John were alerted but we don't know if there were any injuries or the extent of those possible injuries," a police spokeswoman said.
She said shortly after police arrived the fight had been broken up and everyone had dispersed.