Authorities are continuing to investigate a 30-person brawl at a western New York Wal-Mart that led to four arrests.

Gates Police Chief Jim VanBrederode says the fight started around 7 p.m. Sunday after two 17-year-olds made fun of a dress worn by a 24-year-old woman. He says the altercation quickly escalated into a melee.

The chief says people went into the sporting goods section of the store and got baseball bats to use in the fight.

Police say a 17-year-old girl threw a can of food at a 52-year-old man, hitting him in the head. She's charged with assault, harassment and related offenses. Three others have been charged with disorderly conduct.

Authorities are continuing to review surveillance video.