Rep. Ilhan Omar (D-MN) appeared on Columbia University’s campus Thursday to witness the “anti-war encampment.”

Large groups have gathered at Columbia, calling for a ceasefire in Gaza. Some protesters have gone further by calling for the death of Israeli Prime Minister Benjamin Netanyahu and reportedly targeting Jewish students with threats. The New York Police Department has since deployed its counterterrorism unit on campus after arresting 100 protesters on suspicion of trespassing.