New York police intervened after pro-Palestinian demonstrators occupied the university’s main library Wednesday evening.

"When rules are violated and when our academic community is purposefully disrupted, that is a considered choice — one with real consequences," a Columbia official said.

Tensions flared at Columbia University Wednesday when masked protesters ... frightening scene as dozens of demonstrators entered Butler Library where she was studying for finals.

NYPD officers took dozens of pro-Palestinian demonstrators into custody at Columbia University's Butler Library on Wednesday ...

Two security officers were hurt in a "crowd surge" during a protest at a library on the campus of Columbia University in New York on Wednesday, officials said.

New York City police took 80 people into custody after responding to protests on Columbia's campus, the police department ...

At least 80 people were arrested Wednesday after pro-Palestinian protesters stormed Columbia University’s Butler Library, prompting helmeted NYPD officers to enter the building and remove the ...

A faculty rights group at Columbia University condemned the administration for calling the NYPD to gain control over an ...

Celeste Gamble was in Columbia University’s Butler Library, studying for her final exams, when about a hundred student ...

Jason Kao no longer employed by Bloomberg after his arrest during the occupation of a university library by anti-Israel ...

Two police sources told the New York Post about the arrest. They also mentioned that Ramona, who goes to Columbia University, ...

In another of Schwalb’s videos, students can be heard chanting “FREE MAHMOUD!” in reference to Mahmoud Khalil, a student ...