'Violent and disturbing': Teen girls brutally pummel Asian students on Philly SEPTA train; police say attack based on ethnicity

Disturbing video shows teen girls attacking Asian high school students on a SEPTA train in Philadelphia, Pennsylvania. Police say the brutal attack was "based on ethnicity."

Around 3:30 p.m. on Wednesday, students from Central High School were heading home after class on the Broad Street Line subway. A group of teen girls began verbally abusing some other boys, shouting obscenities. One of the girls punched one of the Asian boys.

A female student of Asian descent attempted to intervene, but then she became the target. The teen girls punched her, slammed her head against the side of the train, and threw her to the ground. The attackers relentlessly pummeled and stomped on her. One of the suspects took off her shoe and battered the victim repeatedly.