Police on campus at Columbia and UCLA as protests disrupt colleges nationwide: Live updates - CNN

Live updates: Pro-Palestinian university protests at Columbia, UCLA, UT, campuses amid Israel's war in Gaza

Hundreds of protesters have been arrested in the past 24 hours at college campuses across the country. The majority of demonstrations have called on schools to divest from companies that support Israel and the war in Gaza.

One person was hospitalized after clashes escalated between law enforcement and protesters at the University of California, Los Angeles after a violent confrontation between pro-Palestinian protesters and counterprotesters Tuesday night.

In New York, about 300 protesters were arrested overnight at Columbia University and City College after officers cleared encampments and an occupied building.

Here's what's happening across the country:

- Columbia: Discussions are ongoing about what will happen with graduation, the ongoing NYPD presence on campus and the university’s next steps in light of Tuesday night’s events, the Dean of Columbia University Journalism School said. Of those arrested on Tuesday, Manhattan District Attorney Alvin Bragg said he does not have a breakdown of how many were outsiders. New York City Mayor Eric Adams claimed earlier there were people on campus who should not have been there.

- NYU: Of the arrests made on New York University’s campus last week, fewer than half were current students, faculty and staff, according to the university. On April 22, 133 individuals were arrested on Gould Plaza on campus and 65 were current students, faculty and staff, the university said.

- Fordham University Lincoln Center: The New York Police Department said it arrested people Wednesday afternoon after dispersing an encampment on the Lincoln Center campus of Fordham University. The university requested the NYPD’s assistance, the police department said.

- UCLA: Fifteen people were injured and one person was hospitalized after protesters and counterprotesters clashed on the campus, according to authorities. The UC Office of the President is ordering "an independent external review" of the school's actions. UCLA Chancellor Gene Block also said the school is conducting a "thorough investigation" that could lead to "arrests, expulsions and dismissals."

- University of Wisconsin-Madison: Hundreds of people remained around the Library Mall at the University of Wisconsin-Madison Wednesday afternoon, just hours after law enforcement tore down tents in the area. The protesters locked arms during a demonstration and tents appeared to be back up after police left the premises. At least 30 protesters were cited and several others were arrested after resisting "police action to remove tents or otherwise interfered with the operation," Chancellor Jennifer L. Mnookin said.

- Portland State University: Negotiations with student protesters at Portland State University who occupied a campus library fell through early Wednesday, but about 50 people left the building, the university's president said. Between 50 and 75 protesters broke into the Branford Price Millar Library on Monday, Portland Police Chief Bob Day previously told CNN.

- Emory University: A group of protesters carrying pro-Palestinian signs gathered outside the undergraduate admissions building on Wednesday. A police officer stood inside the door of the building and a small group of protesters were inside too.

- University of Pennsylvania: Campus police removed banners and took a man into custody for spraying an unknown liquid at the University of Pennsylvania’s pro-Palestinian encampment, according to CNN affiliate WPVI. University public safety officials did not immediately respond to CNN’s request for comment, however, campus police officers told The Philadelphia Inquirer the person was not affiliated with UPenn.

Here's what else to know:

- On the campaign trail: The White House sought to answer questions about President Joe Biden's relative silence about the protests by pointing to his condemnation of antisemitism. Biden will deliver the keynote address at the US Holocaust Memorial Museum on Tuesday, it announced earlier. Former President Donald Trump described watching New York police officers clear the Columbia University building that pro-Palestinian protesters were occupying as "a beautiful thing to watch.”
- On Capitol Hill: The House has passed a bill that would more broadly expand the definition of antisemitism. Supporters of the legislation say it will help combat antisemitism on college campuses, but opponents say it overreaches and threatens to chill free speech.