The Milwaukee Police Department is investigating a bomb threat that occurred at approximately 9:00 p.m. on June 16. An anonymous male subject called in to the Technical Communication Division and threatened to blow up District 5. The district was temporarily closed to the public so that a thorough search could be conducted. Once the search was complete and the District was deemed safe, it was re-opened to the public. Police personnel are continuing the investigation in an attempt to identify the individual who made the threat.