Over 300 Harvard University professors have signed a letter to the university urging "constructive dialogue" with the peaceful protesters on campus.

"We are concerned that the university has yet to meet with the students to hear their concerns. Instead, the administration has issued escalating threats of punitive disciplinary action, the severity of which the university has not seen in decades," professors wrote.

"We urge the administration to meet and engage in meaningful dialogue with peacefully protesting students," the letter said.

The letter, sent to interim President Alan Garber and interim Provost John F. Manning Tuesday, came after Harvard warned protesters to empty their encampment. The professors are urging Harvard's administration to follow the lead of Brown University and Northwestern University, where encampments ended after school leadership agreed to take steps toward divestment.

"I think so many of us signed this letter because, as faculty, we have a duty of care towards our students. The harshness and scale of the proposed punishment is unprecedented and frankly alarming; these are activities that should be met with dialogue, not punishment," Teju Cole, a Gore Vidal professor of the practice of creative writing at Harvard, said in a statement.

"We are calling on the administration to be fair-minded and set these protests in the context of numerous other protests that have happened here in the past, in response to which the university did the right thing," Cole said.

Police entered an encampment at the University of Chicago early Tuesday and began dismantling it, according to Chicago ABC station WLS.

UCLA's Chancellor Gene Block said Monday that a detective from the LAPD will join the school's investigation to identify those who were involved in violence against pro-Palestinian protesters on campus last week.

The law enforcement investigation at UCLA is being led by Associate Chancellor and Chief Safety Officer Rick Braziel. Its goal is to "identify the perpetrators of the violence and hold them to account," Block said in a note to the community.

Block said that they have reached out to the FBI for "possible assistance," as well as Los Angeles County District Attorney George Gascón over prosecution.

Protesters at Massachusetts Institute of Technology are resisting orders to leave the encampment on Monday.

Footage from the scene shows protesters toppling the barriers, surrounding the encampment and linking arms.

This comes after MIT President Sally Kornbluth gave students until 2:30 p.m. ET to leave the encampment on campus.

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

Columbia University has distributed a letter to members of the encampment on campus telling them to gather their belongings and leave the area by 2 p.m., saying if they identify themselves and sign a form "to abide by all University policies through June 30, 2025, or the date of the conferral of your degree, whichever is earlier, you will be eligible to complete the semester in good standing."

The school said it has "already identified many students in the encampment" and "if you do not identify yourself upon leaving and sign the form now, you will not be eligible to sign and complete the semester in good standing." The school warned it could take action up to suspension or expulsion if they do not leave the encampment.

The school reiterated that negotiations with protesters had broken down and said the protests are a "disruption" to those taking final exams and preparing for graduation.

"As you are probably aware, the dialogue between the University and student leaders of the encampment is, regrettably, at an impasse," the letter states. "The current unauthorized encampment and disruption on Columbia University’s campus is creating an unwelcoming environment for members of our community. External actors have also contributed to this environment, especially around our gates, causing safety concerns – including for our neighbors."