New York [US], May 1 (ANI): Pro-Palestinian protesters at Columbia University were arrested by New York Police Department (NYPD) officials, as they entered the premises on Tuesday night, according to The New York Times, escalating the tensions further that have gripped the varsities across the US currently. The arrests took place hours after protesters had caught hold of a campus building. The protesters had stormed and occupied a building on Columbia University’s main campus overnight, flying a Palestinian flag from Hamilton Hall. The officers burst through a second-floor window to enter Hami…