Columbia University has suspended dozens of students and barred alums and others who participated in a pro-Palestinian demonstration inside the school’s main library earlier this week.

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

The students were placed on interim suspension and will be prohibited from taking their final exams or entering campus except to access their dormitories, the university official said. Columbia also barred 33 other people from campus,