Columbia protesters occupy campus hall
Pro-Palestinian protesters at Columbia University occupied a hall on campus early Tuesday, hours after school officials ordered the dispersal of a protest encampment.
Videos viewed by ABC News appeared to show protesters creating a barricade with metal chairs outside Hamilton Hall after midnight.
Several were seen in the videos unrolling protest posters from one of the building's balconies.
It was unclear how many demonstrators had occupied the hall, which is on Amsterdam Avenue. The Columbia Spectator, a campus newspaper, reported the people who were inside were working to block the building's exits with tables, chairs and zip-ties.
-ABC News’ Jessica Gorman, Felicia Alvarez and Kevin Shalvey