What to know about campus protests:

• There were violent clashes between the pro-Palestinian encampment and counterprotesters at UCLA overnight. The LAPD said it was responding at the university’s request “due to multiple acts of violence.” The university canceled all classes today.
• Police said 173 individuals were arrested at The City College of New York and 109 at Columbia University last night — for a total of 282 arrests, after special police units breached the occupied Hamilton Hall.
• Columbia said it was left with no choice but to call in the NYPD and has asked police to maintain a presence on campus until May 17, two days after commencement. All academic activities, including finals, for schools on the Morningside Heights campus will be fully remote for the remainder of the semester, the school said this afternoon.
• New York Mayor Eric Adams said in a briefing this morning that while some students were involved in the occupation of Hamilton Hall at Columbia, they were “led by individuals not affiliated with the university.”
• Police on Monday cleared out protest encampments at the University of North Carolina at Chapel Hill, Yale University and the University of Connecticut — but encampments remain at more than 40 colleges nationwide.

Columbia University Associate Professor of English and Comparative Literature Joseph Slaughter said the NYPD dismantling of protests on campus yesterday was “an absolute failure of management” and “completely inappropriate.”

Slaughter said he, along with faculty and most students, were entirely locked out of campus yesterday, but he witnessed the armed NYPD truck pull up to campus and the NYPD’s strategic response group climb through the windows of Hamilton Hall to arrest students.