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.

Nearly 100 people were arrested Thursday after staging a sit-in at Trump Tower in New York City, the NYPD said. It started at around 11:30 a.m. Thursday, police said.According to police, roughly 150 people dressed in civilian clothes entered Trump Tower just before noon.

Some protesters held signs that read "Fight Nazis not students," "Free Mahmoud free Palestine" and "You can’t deport a movement."