Four teenagers aged between 15 and 17 have been arrested after a series of attacks around Temple University's campus in Philadelphia
Police said the attacks were carried out by bands of up to 100 juveniles who roved the campus for nearly two hours
Cops said 50 juveniles were taken into custody as a result
In separate attacks, police said students and others were surrounded and then punched, kicked, robbed ground by groups of 20 to 30 teens
Joe Lauletta says his daughter Christina was a victim and that 'every part of her body is badly bruised'
In a different incident, a teenage boy threw a Temple officer to the ground
Another 15-year-old boy punched a police horse twice in the face as mounted officers were trying to break up a crowd