An #NYPD spox confirmed "multiple arrests" of #protesters who occupied the library but did not provide an exact number.
Before police arrived, #Columbia #University public safety personnel were seen locking the front doors to the library, preventing any more #students from entering the building & sparking a brief episode of pushing & shoving outside.
One student appeared to have been injured in the fracas. Another individual was seen being carried out of the bldg on a stretcher.