A bomb threat on Friday, Aug. 26, forced students at Howard University to evacuate two residence halls for the second time during the first week of the fall semester.
According to NBC Washington, D.C., investigators checked out the threat and found nothing. A university spokesperson said police may know where the call originated.
Howard University police say the threat was received just after 2:30 a.m. on Friday and targeted the East and West Towers on campus, which house up to 1,800 students.
A Howard spokesperson said in a statement that human, animal, and mechanical explosive-finding devices were used in the search of the two residential buildings. On Aug. 23, another bomb threat forced students to evacuate Cook Hall.