Police moved onto the Columbia University campus in New York City overnight into Wednesday, May 1, clearing a pro-Palestinian encampment and occupied buildings.Drone footage recorded by Jarrett Robertson provides an aerial view of the police operation.In a media briefing cited by local media, the NYPD said that the previously occupied Hamilton Hall had been cleared.No injuries were reported by police. The number of arrests was not yet confirmed. Credit: Jarrett Robertson via Storyful