By Jasper Ward (Reuters) -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.

The university sanctions demonstrators involved in pro-Palestinian protests last spring while the arrest of organizer Mahmoud Khalil has become a flashpoint on the rights of legal U.S. residents and free speech.

The protesters chanted “Free Mahmoud! Free them all!” by the golden escalators inside the lobby of Trump Tower on Fifth Ave. in Midtown.