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University of Colorado-Denver Police Chief Doug Abraham sent a campus-wide email Friday ordering all non-essential personnel to leave the campus or stay home.

Abraham says it's a precaution and there is no reason to believe staff or students are at risk. The evacuation order is in effect until 6 a.m. Saturday.

James Holmes has been identified as the suspected shooter at a nearby movie theater Friday in Aurora. Until recently, he studied neuroscience at the University of Colorado-Denver graduate school.

Abraham says Holmes' building access was terminated in June and that he was in the process of completing withdrawal paperwork.

University of Colorado released the following statement:

The University of Colorado community, particularly the CU Anschutz Medical Campus community, extends its deepest condolences to the victims, family and friends affected by today's tragic shooting. The expertise and professionalism in the response of the doctors, nurses, other health care professionals and counseling professionals at the University of Colorado Hospital has been exceptional. We also appreciate the work of all those throughout the campus who responded to the tragedy.

The university is cooperating fully with law enforcement as they continue their investigation. The alleged gunman, James Holmes, was a graduate student studying neurosciences on the CU Anschutz Medical Campus. He was admitted in June 2011, but left the program in June 2012. The university has taken appropriate security measures to address the health and safety of our students, faculty, staff, patients and visitors.