College classes nationwide are wrapping up for the semester, and campuses are preparing for graduation ceremonies.

The notice sent by Columbia to protesters in the encampment Monday said that if they leave by 2 p.m. and sign a form committing to abide by university policies through June 2025 or an earlier graduation, they can finish the semester in good standing. If not, the letter said, they will be suspended, pending further investigation.

“We urge you to remove the encampment so that we do not deprive your fellow students, their families and friends of this momentous occasion,” the letter said, noting that exams are beginning and graduation is upcoming at the Ivy League university in New York City.

A spokesperson for Columbia confirmed the letter had gone out to students but declined to comment further.

Mahmoud Khalil, the lead negotiator on behalf of protesters, said university representatives began passing out the notices at the encampment shortly after 10 a.m. Monday. He said discussions were ongoing about how to proceed.

Under the terms spelled out in the letter, students who leave the encampment would be put on disciplinary probation through June 2025. Students who are already receiving discipline, or who face harassment or discrimination charges for actions in the encampment, are not eligible for the offer.

Early protests at Columbia, where demonstrators set up tents in the center of the campus, sparked pro-Palestinian demonstrations across the country. Students and others have been sparring over the Israel-Hamas war and its mounting death toll. Many students are demanding their universities cut financial ties with Israel.

Protesters at Yale University set up a new encampment with dozens of tents Sunday afternoon, nearly a week after police arrested nearly 50 and cleared a similar camp. Students protesting at Yale said they received a letter from a dean Sunday saying they could face discipline, including suspension, and arrest if they continue their encampment on a grassy quadrangle known as Cross Campus. Yale officials did not immediately return a message seeking comment Monday.

About 275 people were arrested Saturday at various campuses including Indiana University at Bloomington, Arizona State University and Washington University in St. Louis. The number of arrests nationwide has approached 1,000 since New York police removed a pro-Palestinian protest encampment at Columbia and arrested more than 100 demonstrators on April 18.

The demonstrations at Columbia have led it to hold remote classes and set a series of deadlines for protesters to leave the encampment, which they have missed. The school said in an email to students that bringing back police “at this time” would be counterproductive.

The students and administrators have negotiated to end the disruptions, but the sides have not come to an agreement, university President Minouche Shafik said in a statement Monday.

The university’s handling of the protests has prompted federal complaints.

A class-action lawsuit on behalf of Jewish students alleges a breach of contract by Columbia, claiming the university failed to maintain a safe learning environment, despite policies and promises. It also challenges the move away from in-person classes and seeks quick court action requiring Columbia to provide security for the students.

Meanwhile, a legal group representing pro-Palestinian students is urging the U.S. Department of Education’s civil rights office to investigate Columbia’s compliance with the Civil Rights Act of 1964 for how they have been treated.

At Columbia, red and orange tents stayed up on the lawn as protesters considered the latest amnesty offer from the administration. A hundred feet away, a student cafe was open, and people enjoyed coffee in the warm spring sun.

On one side of the shuttered campus, students and staff lined up for security checks across the street from a cluster of TV trucks. At the other side, a police officer stood next to an unmarked black sedan with blue and red lights quietly flashing.

Protests were still active at a number of other campuses. Near George Washington University, protesters at an encampment breached and dismantled the barriers Monday morning used to secure University Yard, the university said in a statement. The yard had been closed since last week.

At least one school, the University of Southern California, canceled its main graduation ceremony this spring. Others are asking the protests to resolve peacefully so they can hold their ceremonies.

Protesters on both sides shouted and shoved each other during dueling demonstrations Sunday at the University of California, Los Angeles. The university stepped up security after “some physical altercations broke out among demonstrators,” Mary Osako, vice chancellor for UCLA Strategic Communications, said in a statement. There were no reports of arrests or injuries.

The plight of students who have been arrested has become a central part of protests, with the students and a growing number of faculty demanding amnesty for protesters. At issue is whether the suspensions and legal records will follow students through their adult lives.

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Mattise reported from Nashville, Tennessee. Associated Press journalists around the country contributed to this report, including Sarah Brumfield in Silver Spring, Maryland, Margery Beck in Omaha, Nebraska, Christopher Weber in Los Angeles and Carolyn Thompson in Buffalo, New York.