Travis County Sheriff's office said Thursday that 57 arrests were made at the University of Texas, Austin campus.
On Wednesday university police had warned students in an email that they faced more arrests if they didn't disperse from the site.
Assistant Police Chief Ashley Griffin wrote in the email that protesters were violating the law and could be arrested for disorderly conduct, rioting, and obstructing a highway or other passageway, according to an email obtained by CNN.
Some context: The Palestine Solidarity Committee in Austin organized a walkout and occupation on the school's South Lawn in Austin.
It led to multiple confrontations between police officers, state troopers "in full riot gear with batons" and the students, Amelia Kimball, associate managing editor at The Daily Texan, told CNN News Central.
"I don't think students were expecting this kind of a response," she said.