The university extended the deadline for protesters to leave.

At California State Polytechnic University, Humboldt, protesters blocked building entrances using furniture, tents, chains, and zip ties, as part of ongoing demonstrations by students demanding that schools cut ties to Israel and divest from companies involved in the ongoing conflict between Israel and Hamas.

Columbia University set a midnight deadline for students to reach an agreement to clear an encampment on campus.

Dozens had been arrested for trespassing or disorderly conduct.

By 3 a.m., there was "constructive dialogue" and the university would continue conversations for 48 hours.

Student protesters would ensure non-affiliated individuals leave, only Columbia students would participate, and comply with fire department requirements.

The university's statement came before US House Speaker Mike Johnson's visit to address antisemitism on college campuses.

Over 200 protesters were arrested Tuesday night during demonstrations in Brooklyn and California demanding a ceasefire in Gaza.

The Brooklyn protest, organized by Jewish Voice for Peace, took place near Sen. Chuck Schumer's home and involved protesters lying down with a large banner depicting a Seder plate.

In California at Cal Poly Humboldt, officers in riot gear pushed into protesters, and videos show students chanting "We are not afraid of you!" Three students were arrested, and the campus was closed until Wednesday following incidents of police violence against students.

Students at the University of Rochester in New York have occupied a second campus building and set up an encampment, demanding to be treated as humans and finding a way to coexist.

The protesters, led by Palestinian senior Omar Darwesh, who has lost relatives in the war, are not calling for the destruction of Israel or threatening Jews.

University officials have asked protesters to follow ground rules, including presenting identification if asked.

The protests come as universities grapple with balancing campus safety and free speech rights, with many previously tolerating protests demanding that schools condemn Israel's assault on Gaza and divest from companies selling weapons to Israel.

Universities in the US have increased disciplinary actions against students involved in pro-Palestinian protests, with some Jewish students claiming the criticism of Israel has turned into antisemitism.

The protests escalated after over 100 protesters were arrested at Columbia University, and by Monday, over 240 protesters had been taken into custody at New York University and Yale University for disorderly conduct.

Yale President Peter Salovey offered to end the demonstration and meet with trustees, but the protesters refused, leading to the arrests due to safety concerns.

A demonstration at the University of Michigan grew to over 40 tents, while nine war protesters were arrested at the University of Minnesota after their encampment was dismantled.

Hundreds rallied for their release.

Harvard University in Massachusetts has taken measures to prevent protests by locking gates and limiting access to those with identification, and posting signs against unauthorized tent setup.

Christian Deleon, a literature doctoral student, supports students' right to protest, while Ben Wizner, an ACLU lawyer, acknowledges college leaders' challenging task of balancing free speech and safety.

The New York Civil Liberties Union (NYCLU) issued a warning to universities on Tuesday, urging them not to label criticism of Israel as antisemitism or use hate incidents as a reason to suppress opposing political views.

Donna Lieberman, the executive director of NYCLU, made this statement.