Investigators also say they are looking at the video shot by Action News of the gang of girls fighting inside the Chestnut Street clothing store on Thursday night.
RELATED: Watch unedited video of the fight
One person has been arrested so far, and police hope to identify more suspects who can be seen on the video.
All of the participants are believed to be juveniles, but police say they will be locked up nonetheless.
"You see maybe six or seven people involved in the melee, so we'll lock up as many as we can identify," said Lt. Ray Evers of the Philadelphia Police.
Hair weaves were pulled out and store merchandise was damaged during the battle.
Police have been deployed in heavy numbers for weeks now, at critical times, in anticipation of more violence in conjunction with the warmer temperatures.
Some high school students say this hoodlum conduct creates stereotypes that paint all city teens with a broad brush.
"I think most of the action taking place is crippling some of the good kids that actually go out to stores and go shopping on their own," said Andrew Thompson of North Philadelphia.
"I don't think their mothers raised them that way. I don't think that's the way their families would want to see them act. So, that's totally disrespectful on their part," said Joseph Wilson of Mount Airy.
Among the places police have staked out include Love Park, The Gallery, Chestnut and Walnut streets and South Street.