Three people were hospitalized Tuesday after they were exposed to white powder at the Palm Beach County State Attorney's Office, officials said.
The three people - two women and one man - were hospitalized after they complained of headaches after being exposed to the powder at the office at 401 North Dixie Highway, a City of West Palm Beach spokesman told WPTV.
Both women had nausea and were vomiting before they were taken to the hospital.
The powder was found in an envelope in a mail processing center on the first floor. Tests on the powder have been inconclusive and it was being sent to the FBI for further testing, Palm Beach County Emergency Management officials said.
Areas of the building had been evacuated and the mail room was sealed as authorities investigated.
One firefighter who responded to the scene was hospitalized after complaining of cardiac problems.