Police were responding to a student fight outside of a high school in Allentown, PA. At some point after arriving on scene, the fight turned on the officers.
The video shows a scuffle between a student and two officers. A female is seen attacking a police officer on the ground.
A few seconds later, the attacker breaks free and the officers give chase and engage in a physical confrontation again.
Four Allentown offers were injured in the fight.
More information here