Virginia Tech said it has cleared an encampment on campus and arrested 82 protesters for trespassing, after refusing to comply with university policies.

"Virginia Tech strongly supports free speech, even when the content of that speech may be disagreeable to some. However, those rights do not extend beyond the point where they interfere with the rights of others, violate our policies, the Code of Virginia, or federal laws and/or create a threat to safety for others," Virginia Tech President Tim Sands said in a statement.

Meanwhile, Virginia Tech Muslim Student Association said in a letter the 91 students faculty and staff were arrested for peacefully protesting.

"As we reach the end of the semester, 7 months after Oct. 7, we are finding our voices still unheard. We are waiting for your support of us and Palestine," the Virginia Tech MSA said in a statement.

-ABC News' Nadine El-Bawab and Kerem Inal

California State Polytechnic University, Humboldt said it has cleared two campus buildings that had been occupied by protesters for over a week and arrested 25 people.

"Those arrested faced a range of different charges depending on individual circumstances including unlawful assembly, vandalism, conspiracy, assault of police officers, and others. In addition, students could face discipline for conduct violations while any University employees arrested could face disciplinary action," Cal Poly said in a statement.

The university called the occupation of the two buildings "criminal activity" and said there were "serious concerns it would spread even further on campus."

"This morning’s enforcement action was determined to be necessary to restore order and to address the lawlessness and dangerous conditions that had developed. What was occurring was not free expression or a protest," the university said in a statement.

The campus will remain closed until May 10.

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.

The University of Connecticut cleared an encampment of pro-Palestinian protesters early Tuesday after they refused orders to disperse. UConn has not yet revealed the number of arrests and charges.

UConn said that protests were permitted but setting up tents violated university guidelines.

"The group was warned multiple times over a period of days that while they were free to be in the space and exercise their free speech rights, the guidelines needed to be followed and the tents needed to be taken down. This was ignored," UConn said in a statement.

"UConn Police directed them four times on Tuesday morning to remove the tents and disperse, and they again repeatedly ignored the directives. Officers then entered the site to remove the tents and tarps, and to arrest those who refused compliance," UConn said in a statement.

-ABC News' Mark Osborne

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."