Nearly 100 people were arrested after protesters gathered at Trump Tower in Manhattan Thursday to denounce the arrest of Mahmoud Khalil, a Palestinian activist detained by ICE over his involvement with pro-Palestinian demonstrations at Columbia University.

Police, staged inside and outside the Fifth Avenue building before the demonstration, warned protesters to leave or face arrest.

Scores of people poured into the lobby of Trump Tower in New York City on Thursday to protest the arrest and detention of Columbia University student Mahmoud Khalil, whom the Trump administration aims to deport over his pro-Palestinian activism.