UWI security said final checks were completed at 11:20am.
As a result of the threat, adjacent buildings to the Faculty extending from Management Studies to the Faculty of Humanities and Education were evacuated.
Staff at the Faculty of Social Sciences and at the Faculty of Humanities and Education were also sent home.
The Trinidad and Tobago Fire Services, the Trinidad and Tobago Police Service Bomb Unit as well as the campus' Occupational Health, Safety and the Environment (OSHE) Unit were on scene completing their investigations.
The Minister in the Ministry of Education, Dr. Lovell Francis, assured that all safety checks were carried out.
"The Occupational Health and Safety Committee has assured that all checks was done, no device of any kind was located and the campus has returned to normal functioning. So it turned out to be, I suppose, a threat without any substantiation."