Pics: Mob of teens brutally beat 2 students in Philly subway station

Security video showed the moment a mob of students brutally beat 2 high schoolers in a Philadelphia subway station. Other students were seen cheering it on. This happened on Tuesday April 21st and it's now being investigated though no student has reported being assaulted.

The 4-mins video of the brutal assault for released yesterday and shows the teens repeatedly stomping on one of the victim's head. The fight was reportedly over a girl. The victims and the teens who assaulted them were all from Benjamin Franklin High School. See the more pics below