More than 100 pro-Palestinian protesters were arrested on Wednesday on the campus of Columbia University after its president authorized New York police to clear an encampment set up by students demonstrating against Israel’s actions in Gaza, Reuters reports.

Columbia University President Nemat Minouche Shafik, who a day earlier came under fire from Republicans at a House of Representatives committee hearing on anti-Semitism on campus, said she had authorized police to clear an encampment of dozens of tents set up by protesters on Wednesday morning.

“Out of an abundance of concern for the safety of Columbias campus, I authorized the New York Police Department to begin clearing the encampment … “ Shafik said in a statement.

Shafik said the protesters had violated the school’s rules and policies against holding unauthorized demonstrations, and were unwilling to engage with administrators.

New York City Mayor Eric Adams said police made over 108 arrests without violence or injuries. Police said the arrests were related to trespassing.

Columbia said it had started to suspend students who had participated in the tent encampment, considered an unauthorized protest.

“We are continuing to identify them and will be sending out formal notifications,” a university spokesperson said by email.

At least three students — Isra Hirsi, Maryam Iqbal, and Soph Dinu — have received suspension notices from Barnard College, an affiliate of Columbia, for participating in the encampment, the pro-Palestinian advocacy group Institute for Middle East Understanding said.

Hirsi is the daughter of US Representative Ilhan Omar, who had expressed support for protesters during the hearing at which Shafik testified on Wednesday.

“Those of us in Gaza solidarity encampment will not be intimidated,” Hirsi said on social media after being suspended.