White powder sickens three at Florida state attorney's office

The Federal Bureau of Investigation and the U.S. Department of Homeland Security are investigating a suspicious powder found in an envelope on Tuesday that potentially caused three Florida state attorney's office employees to fall ill.
The envelope was opened in the mail room of a West Palm Beach office. Two of the three employees and a firefighter exposed to the powder were hospitalized. Two of the mail room employees complained of nausea, vomiting and a headache and a third employee reported only a headache. The firefighter reportedly suffered cardiac problems, though officials do not know for sure that the symptoms are related to the powder, the Examiner reports.
Officials evacuated the building's second floor until an air duct connecting it to the mail room was sealed. Other employees in the mail room at the time the envelope was opened did not complain of medical issues. Initial tests of the powder inside the envelope were inconclusive and the investigation is ongoing.
A Florida man was the first fatality in the 2001 anthrax attacks just weeks after the September 11, 2001, attacks. Robert Stevens, a photo editor, died after opening a letter containing deadly anthrax spores on October 5, 2001. The envelope was sent to the Boca Raton headquarters of American Media, Inc. The attacks, which included letters sent to Florida, Connecticut, Washington, D.C., and New York, resulted in five deaths and 22 hospitalizations in total.