Immigration officials from the Department of Homeland Security entered a Columbia University residential building early Thursday morning and detained a student, the university said.

�? ?Acting President Claire Shipman stated that school officials believe the agents misrepresented themselves by claiming they were searching for a �missing person� to gain access.

�? ?The university said the detention occurred at approximately 6:30 a.m. Columbia noted that law enforcement agents are required to present a judicial warrant to enter private campus areas and said it appeared no such warrant was used.