Columbia for Palestine, a pro-Palestinian group at the school, said on Tuesday that 80 students were informed on Monday about their punishments. It said the disciplinary action marked "the most suspensions for a single political protest in Columbia campus history" and exceeded past disciplinary actions announced against people over other protests.

NEW YORK — Columbia University has expelled and issued lengthy suspensions to dozens of students for participating in the pro-Palestinian occupation of Butler Library just days before final exams in May.

Columbia issued sanctions to students involved in a pro-Palestinian protest at Butler Library in May, in which at least 80 people were detained, as well as to th