SPRINGFIELD, Ill. (AP) -- Springfield fire officials are investigating a suspicious letter sent to Gov. Pat Quinn's constituent services office.
About a half dozen people were evacuated Tuesday from the office's mail room. The office is across the street from the state Capitol where lawmakers were gathering to take vote on pensions.
Springfield Fire Chief Ken Fustin says a white powder came out of the envelope when it was opened. Fustin says the content of the letter and substance were determined to be a "legitimate threat" and further tests were ongoing.
He wouldn't give further details saying the investigation was ongoing.
Employees of the office gathered in a stairwell and near the entrance of the building Tuesday and waited for the all-clear to return.