Dem. Senator Says His Michigan Office Received a 'Suspicious-Looking Letter

Sen. Carl Levin, D-Mich. , the Senate Armed Services chairman, talks to reporters before a weekly political luncheon with fellow Democrats at the Capitol in Washington, Tuesday, July 17, 2012. (AP)

Sen. Carl Levin (D-Mich.) said Wednesday one of his regional offices received a "suspicious-looking letter," one day after letters sent to a Republican senator and to President Barack Obama tested positive for ricin.

"Earlier today, a staffer at my Saginaw regional office received a suspicious-looking letter," Levin said in a statement. "The letter was not opened, and the staffer followed the proper protocols for the situation, including alerting the authorities, who are now investigating."

Levin, who chairs the Armed Services Committee, said they "do not know yet if the mail presented a threat."

"I’m grateful for my staff’s quick response and for government personnel at all levels who are responding," he said.

Update 5:40 p.m.: Sen. Levin issued a statement later in the afternoon saying the staffer who discovered the letter was admitted to the hospital. Although not exhibiting any symptoms, the staffer is being monitored as a precautionary measure.

Mlive reported two paramedics who responded to the office when it received the letter are being kept at the hospital, without exhibiting symptoms, as a precaution as well.