DETROIT --
The FBI and United States Postal Service are investigating a letter that arrived Thursday at Michigan's Capitol and contained a granular substanced that caused irritation to an employee's hand.
Department of Management and Budget spokesman Curt Weiss said the letter was opened at about 2 p.m. inside the Romney Building, where Gov. Rick Snyder works. He said the employee described the substance like a salt and pepper mixture. The employee rinsed his hands off and did not seek medical treatment, Weiss said.
Snyder is at a police conference on Mackinac Island.
The letter was sealed in a hazmat bag and is under investigation.
The building was not evacuated.
Weiss said he did not know what the letter's postmark was, but said it did not have a return address.
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