Harvard University alerted its students and staff to shelter in place Tuesday morning due to reports of an armed assailant on the loose. The emergency notification was issued following an aggravated assault and battery involving an unidentified person wielding a knife or machete.

Multiple law enforcement agencies, including Harvard University Police, Cambridge Police, and Massachusetts State Troopers, are involved in the search for the suspect. The area of focus for the search is near 124 Mount Auburn Street. The university utilizes MessageMe as its emergency notification system to disseminate critical information quickly.

This alert comes just ahead of the start of Harvard's fall term, with many students already on campus for pre-semester preparations. The incident occurred on Tuesday morning in Cambridge, Massachusetts.