The Mount Dora, Florida, police are investigating a suspicious powder found at a post office facility. Twelve employees have been exposed, but no one is showing any symptoms of illness.
The white powder came from an envelope that arrived at the United States Postal Service facility on Old Highway 441 in Mount Dora.
Mount Dora police and fire crews are on the scene, along with Lake County EMS and Hazmat. The FBI has also been informed.