A 57-year-old man was attacked at West 112th Street and Broadway early Monday morning. He boarded a southbound train to seek help from police.
Columbia and the Trump administration have been trying to work out a deal to restore the $400 million in federal grants being withheld.
Sources say the deal would help the school regain access to more than $400 million in Federal funding.
During the disruption, two of Columbia Public Safety officers suffered injuries during a crowd surge when individuals attempted to force their way into the building and into Room 301, the university's acting president said.
The roar of leaking gas sent hundreds into the streets and for some, the ominous odor was terrifying.
Mohsen Mahdawi's was arrested after attending his naturalization interview on Monday, his attorney told ABC News.