Violence broke out at the University of California, Los Angeles, early Wednesday between pro-Palestinian and pro-Israeli protesters.
People threw things and shoved and kicked one another.
Some armed with sticks beat others. At one point, a group piled on one person who lay on the ground, kicking and beating them until others pulled them out of the scrum.
The clashes took place just outside a tent encampment, where pro-Palestinian protesters erected barricades and plywood for protection - and counter-protesters tried to pull them down.