Officials at Sam Houston State University are investigating a threat made against the campus.
Huntsville police said someone called Huntsville Memorial Hospital about 2:40 p.m. on Friday and made a vague threat against the university.
Huntsville and university police said they were patrolling the campus and surrounding student housing.
The campus has not been put on lockdown as a result of the threat.
Police are working to determine who made the threat.
Anyone with information regarding the threat is asked to call Huntsville Police at 936-581-3004.