Pro-Palestinian protesters at Harvard University organized on Sunday to stage their second major rally this semester, criticizing the school for what they called its “repression” of free speech activities as its administration attempts to crack down on antisemitism.

Rallygoers called on Sen. Elizabeth Warren (D-MA) to cast her vote against a military aid bill to Israel. The protest came after interim President Alan Garber warned protesters they were not allowed to restrict access to “campus buildings, classrooms, administrative offices, or other spaces.”