Yale University police officers gathered on campus early Monday morning and began arresting anti-Israel protesters, including some students, who had set up an illegal encampment.

More than a dozen police officers arrived around 6:45 a.m. at Yale’s Beinecke Plaza, where pro-Palestinian protesters have been camping for three nights. Shortly after warning protesters to disperse or face arrest for trespassing, Yale police officers began arresting protesters, the Yale Daily News reported. A total of 40 to 45 protesters were arrested.

As the arrests were made, around 150 protesters stood with their arms interlocked and chanted, “YPD [Yale Police Department] or KKK, I don’t know, they’re all the same” and “Officer, officer, can’t you see? You’re on the wrong side of history.”

The police could be seen disassembling tents.

A lieutenant of the Yale Police Department told the Daily News that the protesters were going to be written up and released, and another lieutenant stated that students were arrested for trespassing.

As arrests were made, a group of protesters began chanting “Salovey, Salovey you can’t hide, you’re committing genocide” and “YPD, you can’t hide, you’re protecting genocide.”

Peter Salovey, the Yale University president, sent an email to the university community members on Sunday afternoon stating that Yale would pursue disciplinary measures for violations of school policies.

“I am aware of reports of egregious behavior, such as intimidation and harassment, pushing those in crowds, removal of the plaza flag, and other harmful acts,” Salovey said on Sunday. “Yale does not tolerate actions, including remarks, that threaten, harass, or intimidate members of the university’s Jewish, Muslim, and other communities.”

Current Yale student and former National Review intern Sahar Tartak has shared footage of the protests on social media.

“I was stabbed in the eye last night on Yale University’s campus because I am a Jew,” Tartak wrote in the Free Press today. 

The Yale Daily News reported that approximately 400 people had gathered at Beinecke Plaza on Friday; of those, about 100 stayed overnight in 27 tents. The student paper reported that, by Sunday night, the demonstration was roughly 250 protesters in about 40 tents.

Organizers of the demonstration have shared content on the social-media page “Occupy Beinecke.”

“Admin doesn’t want to arrest in front of a crowd,” reads a post shared by Occupy Beinecke six hours ago. The post states that there is “safety in numbers” and instructs protesters to “show up as early in the morning as you can,” adding “please help keep us safe.”

Video footage shared today by the Occupy Beinecke account shows police officers warning the protesters that “if you do not leave, you will be arrested.”

On Sunday, the twelve graduate students and two undergraduate students who formed “Hunger Strikes for Palestine” ended its eight-day-long hunger strike.

“Today, the hunger strikers end their 8-day hunger strike—the longest graduate student-led hunger strike since the start of Israel’s genocide in Palestine,” the group wrote on social media. They claim to have refused food entirely during that time.