Police were called to Ascension St. John Hospital on Detroit's east side because of threatening calls, according to the WWJ News Radio website.
Detroit police say a psychiatric patient at the hospital wanted to get out, so they called police with what was determined to be a bogus shooting threat, and then a fake bomb threat.
There were no reports of any injuries or shots fired.
After a brief lockdown, a spokesperson for Ascension said the hospital is back open. The investigation is ongoing.
Redefining What Mental Health Facilities Look Like
Managing High-Volume Laundry Operations
University of Pittsburgh Medical Center Falls Victim to Vendor Data Breach
Optimizing the Engineering Design of Ambulatory Care Facilities
Construction Completed on Washington Health Urgent Care Facility in California