She told NJ.com that one of the women hit Bohannon and the other woman punched DeRusso.
"Both of my friends were on the ground at this point, getting punched," McFadden told NJ.com. "I jumped out of the passenger side and I grabbed my phone so that I could call the police. People started coming over, but I think a lot of people were scared to get involved," she said.
When it was over, all three girls were treated at a local hospital.
Authorities are investigating the incident.