In photos: Tension at UCLA, other colleges as protests escalate

May 2 | Los Angeles

Police move in on pro-Palestinian protesters at their encampment on the UCLA campus.

Etienne Laurent/AFP/Getty Images

May 2 | Los Angeles

Officers breach the UCLA encampment.

Etienne Laurent/AFP/Getty Images

May 2 | Los Angeles

Police face off with pro-Palestinian demonstrators after clearing part of the encampment barricade on the UCLA campus.

Etienne Laurent/AFP/Getty Images

May 2 | Los Angeles

Police face off with pro-Palestinian demonstrators after dismantling part of the encampment barricade on UCLA's campus.

Etienne Laurent/AFP/Getty Images

May 2 | Los Angeles

Police face off with pro-Palestinian demonstrators after clearing part of the encampment barricade at UCLA.

Etienne Laurent/AFP/Getty Images

May 2 | Los Angeles

Police make an arrest at UCLA.

Etienne Laurent/AFP/Getty Images

May 2 | Los Angeles

Police dismantle a barrier set up by pro-Palestinian demonstrators on the UCLA campus.

Jae C. Hong/AP

May 2 | Los Angeles

Law enforcement faces off with pro-Palestinian students after clearing part of the encampment barricade at UCLA.

Etienne Laurent/AFP/Getty Images

May 2 | Los Angeles

Police remove a barrier set up by pro-Palestinian demonstrators on the UCLA campus.

Jae C. Hong/AP

May 2 | Los Angeles

Police advance on pro-Palestinian demonstrators in an encampment on the UCLA campus.

Jae C. Hong/AP

May 2 | Los Angeles

A demonstrator aims a fire extinguisher at law enforcement officials as they enter the encampment at UCLA.

Aude Guerrucci/Reuters

May 2 | Los Angeles

Law enforcement officers detain a protester at UCLA.

Mike Blake/Reuters

May 2 | Los Angeles

Police make an arrest at UCLA.

Etienne Laurent/AFP/Getty Images

May 2 | Los Angeles

A law enforcement officer holds a weapon as protesters supporting Palestinians in Gaza gather at an encampment at UCLA.

Mike Blake/Reuters

May 2 | Los Angeles

Police make an arrest as they face off with pro-Palestinian demonstrators at UCLA.

Etienne Laurent/AFP/Getty Images

May 2 | Los Angeles

Law enforcement officials clash with demonstrators as they enter the protest encampment at UCLA.

Aude Guerrucci/Reuters

May 2 | Los Angeles

A law enforcement officer detains a protester at UCLA.

Mike Blake/Reuters

May 1 | Los Angeles

Pro-Palestinian demonstrators lock arms on the UCLA campus.

Jae C. Hong/AP

May 1 | Los Angeles

Police on the UCLA campus after declaring a nearby pro-Palestinian encampment an unlawful assembly.

Ryan Sun/AP

May 1 | Los Angeles

Pro-Palestinian demonstrators at UCLA build shields in preparation of possible police action.

Ethan Swope/AP

May 1 | Los Angeles

A person reinforces the barricade around the pro-Palestinian encampment at UCLA.

Jae C. Hong/AP

May 1 | Los Angeles

Protesters at UCLA watch police over the barricade.

Jae C. Hong/AP

May 1 | Los Angeles

Supporters of the pro-Palestinian protesters sit at the bottom of the stairs leading to the encampment at UCLA.

Etienne Laurent/AFP/Getty Images

May 1 | Madison, Wis.

Police gather as they begin to tents erected by protesters at the campus of the University of Wisconsin.

Todd Richmond/AP

May 1 | Madison, Wis.

Campus protesters line up in front of officers.

Wisconsin State Journal/AP

May 1 | Madison, Wis.

Officers remove tents from the University of Wisconsin encampment.

Wisconsin State Journal/AP

May 1 | Madison, Wis.

Police push back on demonstrators.

Wisconsin State Journal/AP

May 1 | Madison, Wis.

Police detain a demonstrator.

Wisconsin State Journal/AP

May 1 | Madison, Wis.

Madison police carry a demonstrator on campus.

Wisconsin State Journal/AP

May 1 | Los Angeles

Counterprotesters attack a pro-Palestinian encampment at UCLA.

Etienne Laurent/AFP/Getty Images

May 1 | Los Angeles

A pro-Palestinian protester who was sprayed with an irritant.

David Swanson/Reuters

May 1 | Los Angeles

A counterprotester strikes a barricade at the pro-Palestinian encampment.

David Swanson/Reuters

May 1 | Los Angeles

Counterprotesters attack the UCLA encampment.

Etienne Laurent/AFP/Getty Images

May 1 | Los Angeles

The attack on the UCLA encampment.

Etienne Laurent/AFP/Getty Images

May 1 | Los Angeles

A pro-Palestinian protester takes shelter behind a barricade.

Etienne Laurent/AFP/Getty Images

May 1 | Los Angeles

An injured pro-Palestinian protester runs from attackers near the encampment.

David Swanson/Reuters

May 1 | Los Angeles

Attackers beat a pro-Palestinian demonstrator.

Etienne Laurent/AFP/Getty Images

May 1 | Los Angeles

A man shouts at pro-Palestinian protesters on the UCLA campus.

Etienne Laurent/AFP/Getty Images

May 1 | Los Angeles

An injured pro-Palestinian protester.

Ethan Swope/AP

May 1 | Richardson, Tex.

Police detain pro-Palestinian protesters at the University of Texas at Dallas.

Juan Figueroa/Dallas Morning News/AP

May 1 | Tucson

Pro-Palestinian protesters link arms as police clear an encampment on the University of Arizona campus.

Kelly Presnell/Arizona Daily Star/AP

May 1 | New York City

Faculty members form a chain around student protesters at Fordham University.

Ed Ou for The Washington Post

May 1 | Columbus, Ohio

A sign depicts President Biden and Israeli Prime Minister Benjamin Netanyahu with blood on their hands at an Ohio State University protest.

Andrew Spear/Getty Images

May 1 | Montreal

Pro-Palestinian activists camp out on the McGill University campus.

Ryan Remiorz/Canadian Press/AP

April 30 | Chapel Hill, N.C.

Pro-Palestinian demonstrators clash with police after replacing an American flag with a Palestinian flag at the University of North Carolina. Police removed an encampment earlier in the day.

Travis Long/News & Observer

April 30 | Tampa

A pro-Palestinian protester throws a tear-gas canister back toward police after it tumbled into protesters at the University of South Florida.

Douglas R. Clifford/Tampa Bay Times/AP

April 30 | New York

Palestinian supporters climb a fence during demonstrations at the City College of New York.

Spencer Platt/Getty Images

April 30 | New York

Pro-Palestinian protesters confront police during the CUNY demonstrations.

Spencer Platt/Getty Images

April 30 | New York

Police arrest CUNY protesters.

Spencer Platt/Getty Images

April 30 | New York

A detained protester at Columbia University.

David Dee Delgado/Reuters

April 30 | New York

Officers transport arrested students in a bus as they clear a building that had been barricaded at Columbia.

Charly Triballeau/AFP/Getty Images

April 30 | New York

Officers stand next to barricaded students at Columbia University.

Timothy A. Clary/AFP/Getty Images

April 30 | New York

Police arrest Columbia protesters.

Alex Kent/Getty Images

April 30 | New York

Officers use a ramp on an armored vehicle to enter Columbia's Hamilton Hall.

Stephani Spindel/EPA-EFE/Shutterstock

April 30 | New York

Protesters link arms outside Hamilton Hall with students inside.

Caitlin Ochs/Reuters

April 30 | New York

Students block the entrance to Hamilton Hall.

Marco Postigo Storel/AP

April 30 | New York

A maintenance crew member confronts a demonstrator inside Hamilton Hall.

Alex Kent/Getty Images

April 30 | New York

Protesters pile furniture in front of a door at Hamilton Hall.

Alex Kent/Getty Images

April 30 | New York

A protester inside Hamilton Hall.

Alex Kent/Getty Images

April 29 | Austin

Pro-Palestinian protesters confront state troopers at the University of Texas.

Suzanne Cordeiro/AFP/Getty Images

April 29 | Austin

A trooper pepper sprays protesters after police vehicles were blocked at the University of Texas.

Aaron E. Martinez/USA Today Network/Reuters