Police in New York City have arrested more than 300 pro-Palestinian protestors, following the occupation of a building at Columbia University, the latest escalation since demonstrators set up an encampment at the school several weeks ago.
Unrest continues at campuses across the US, with Los Angeles also clearing an encampment at UCLA following clashes with pro-Israel counterprotestors.
Ira Spitzer reports on the scene at Columbia.
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