Anthrax scare in San Diego

An anthrax scare at a Kearny Mesa, California business is under investigation by the FBI.

Hazmat crews and firefighters responded to Industrial Metal Supply Company, located on Ronson Road in kearny Mesa, at noon on Thursday after a letter with a device inside of it threw a mist of white powder into the air when an employee opened it.

The building was promptly evacuated and two workers, as a precaution, were taken to a hospital.

Tests revealed that the white powder was talcum powder.

"Definitely puts a dent in the day, if the person wanted nothing more than commotion they got that at a minimum," Megan Humpal told

The FBI has begun its investigation into the letter to determine who mailed it.

"That's a weapon of potential mass destruction, it certainly causes a lot of fear and the legislature has deemed that a felony and something we take very, very seriously," San Diego Police Department Lt. Dan Christman told

Kearny Mesa, located in the eastern part of San Diego, California, is the home to Marine Corps Air Station Miramar, a United States Marine Corps installation that is home to the 3rd Marine Aircraft Wing, which is the 1st Marine Expeditionary Force's aviation element.