GLENDALE (WITI) -- General Plastics was evacuated Wednesday morning, April 9th following a bomb threat.
Authorities say the bomb threat was received by phone around 8 a.m.
According to officials, an initial sweep of the building found nothing suspicious.
The Milwaukee County Sheriff's K9 Unit was called to the scene to conduct a secondary search.
Glendale police say they have identified suspects.
The investigation is ongoing.
Monitor FOX6 News and FOX6Now.com for updates on this developing story.