Protesters interrupted an Israeli history class at Columbia University on Tuesday, January 21, leaving leaflets with messages such as “Crush Zionism” and “Burn Zionism to the ground” around the classroom.Footage filmed by Orri Zussman shows the protesters entering the classroom and interrupting the lesson.The protesters interrupted a History of Modern Israel class taught by Avi Shilon, the Times of Israel said.Shilon told the newspaper: “I didn’t know how to react because if you would be aggressive they can claim that you pushed them or something, and if you’re going to be more calm they can continue, so I suggested to them to join the class and to learn about the conflict.”Columbia University has condemned the action, with a statement from Interim President Katrina Armstrong reading “No group of students has a right to disrupt another group of students in a Columbia classroom.”“We strongly condemn this disruption, as well as the fliers that included violent imagery that is unacceptable on our campus and in our community,” Armstrong’s statement said. Credit: Orri Zussman via Storyful