STORY: Protesters also used outdoor tables to barricade the entrance to Hamilton Hall after other student protesters barricaded themselves inside the building.
The school began suspending pro-Palestinian activists who refused to take down a tent encampment on its New York City campus Monday (April 29) - after the school declared a stalemate in talks to end the protests.
University President Nemat Minouche Shafik said in a statement that days of negotiations between student organizers and academic leaders had failed to persuade demonstrators to dismantle dozens of tents set up to express opposition to Israel's war in Gaza.
The crackdown at Columbia comes amid a wave of Gaza-related protests across American universities.
