Columbia University on Thursday announced a range of punishments, including expulsions and suspensions, for students who took over of a campus building last year.

Columbia University student involved with last year’s protests has been arrested by federal Immigration and Customs Enforcement agents with Homeland Security Investigations, while another had her student visa revoked and self-deported,

The latest arrest, which was conducted by immigration officers from the Newark, New Jersey, field office, came hours after federal agents executed search warrants on two university residences.