ASU PD, the Tempe Police Department and the Chandler Police Department cleared out the two locations early Tuesday morning with K-9 units. "No items of concern were discovered during the thorough investigation of the facilities," ASU PD spokesperson Adam Wolfe said in an email on Tuesday.
No arrests were made, but the incident remains under investigation, Wolfe said.
Monday night, a message titled "bomb threat" was sent through the University's LiveSafe app.
Police evacuated the MU, Hassayampa and the Barrett Residential Complex. The Barrett Complex was evacuated out of caution, Wolfe said.
Between the Barrett and Hassayampa dorms, there are over 3,500 students, according to ASU spokesperson Gabriella Kemp.
At 12:48 a.m. on Tuesday, another Live Safe message determined the Memorial Union to be cleared and safe for activities to be resumed. By 1:03 a.m., students were allowed to return to their Hassayampa and Barrett dorms.
The incident comes nearly seven months after an ASU student was arrested for having explosive materials in his dorm room.
This story was updated at 8:54 p.m. on Sept. 13 to include the number of students living in the dorms that were evacuated.
Reporter Analisa Valdez contributed to the reporting of this article.
Edited by Wyatt Myskow, Grace Copperthite and Kristen Apolline Castillo.
Jasmine Kabiri is a managing editor at The State Press, overseeing and editing stories produced by the six digital desks. She has previously worked as a news intern at the Daily Camera in Boulder, Colorado.