ICE agents arrested Palestinian activist Mahmoud Khalil -- a leader in Columbia University's encampment movement -- on Saturday night, said his attorney, Amy Greer.

Here's a look at what kind of protections foreign students and green card holders have and what might be next for Khalil.

A Palestinian activist who led the disruptive protests at both Columbia University and Barnard College has been arrested by ICE agents at his campus apartment, according to his lawyer.

A prominent Palestinian activist who helped lead last spring's protests at Columbia University has been arrested by federal ...

DHS agents detained Khalil, a green card-holding Palestinian activist who took part in the Gaza protests at Columbia ...

Prominent New York City immigration activist Ravi Ragbir felt a sense of deja vu after learning of the detention on Saturday ...

James said she is "extremely concerned" about the arrest and detention of Palestinian activist Mahmoud Khalil by Immigration ...

ICE agents have recently arrested Mahmoud Khalil, a Palestinian activist, who completed his graduate studies at Columbia ...

President Trump says more arrests will follow, as protesters demonstrate against the detention of Mahmoud Khalil.

Mahmoud Khalil, who recently completed a graduate program at Columbia, has legal permanent residency, his lawyer said.