NYPD officers in riot gear break into a building at Columbia University, where pro-Palestinian students are barricaded inside a building and have set up an encampment, in New York City on April 30, 2024. New York police entered Columbia University's campus late April 30, 2024 and were in front of a building barricaded by pro-Palestinian student protesters, an AFP reporter saw. Dozens of people were around Hamilton Hall, on the Columbia campus in the middle of New York City, as police arrived and began pushing protesters outside, the reporter said. (Photo by KENA BETANCUR / AFP)