In a message to the campus community Monday, Massachusetts Institute of Technology President Sally Kornbluth gave students until 2:30 p.m. to leave the encampment on campus.

However, protesters remained in the area until after the deadline. It's unclear if police will move in and make arrests.

"In short, this prolonged use of MIT property as a venue for protest, without permission, especially on an issue with such sharp disagreement, is no longer safely sustainable," Kornbluth said.

The encampment on MIT’s campus, on the Kresge lawn, has been ongoing for more than two weeks, according to Kornbluth.

Police moved in on an encampment at the University of California, San Diego early Monday morning, dismantling it and arresting 64 people, according to authorities.

There were 40 students among those arrested, with officials saying they "have been or will be placed under immediate interim suspension."

All classes were moved to remote learning and nonessential personnel were asked to remain home.

Several dozen protesters were detained on UCLA’s campus Monday morning, according to Los Angeles ABC station KABC.

University officials said all classes would be held remotely Monday “due to ongoing disruptions,” and police would be stationed around campus.

Harvard University students who continue to take part in the pro-Palestinian protest encampment at the school will be “referred for involuntary leave,” the university’s interim president, Alan M. Garber, said Monday.

In a letter to the student body, Garber called on protesters “to end the occupation of Harvard Yard,” arguing that the encampment “favors the voices of a few over the rights of many who have experienced disruption in how they learn and work at a critical time of the semester.”

Students placed on involuntary leave “may not be able to sit for exams, may not continue to reside in Harvard housing, and must cease to be present on campus until reinstated,” he wrote.

“As an academic institution, we do not shy away from hard and important questions,” Garber wrote. “There are many ways for our community to engage constructively in reasoned discussion of complex issues, but initiating these difficult and crucial conversations does not require, or justify, interfering with the educational environment and Harvard’s academic mission.”

-ABC News' Julia Reinstein

Northwestern University announced it has reached a deal with pro-Palestinian protesters, ending an encampment of students and faculty, but allowing peaceful demonstrations to continue through June 1.

The university said it would "answer questions from any internal stakeholder about holdings, held currently or within the last quarter, to the best of its knowledge and to the extent legally possible" -- meeting a key call from divestment protesters and students around the country who are seeking more transparency over universities' investments.

Northwestern will also reestablish an Advisory Committee on Investment Responsibility in the fall, which will include representatives from students, faculty and staff.

The university also pledged more inclusivity, funding two Palestinian faculty members and the full cost of attendance for five Palestinian undergraduate students annually, as well as a commitment to raising funds to sustain the program beyond this commitment.

Under the agreement, Northwestern says tents will be removed immediately but one aid tent will be allowed to remain. Protesters will need to suspend the use of "non-approved" amplified sound." Protesters who refuse to follow the agreement will be suspended and non-affiliated individuals must leave campus.