FBI, Oregon State Police investigate suspicious mail sent to government offices in state

PORTLAND -- The FBI and Oregon State Police are investigating suspicious mail received at government offices around the state, some of which contained an unknown substance, KPTV reported.

Troopers said multiple government offices received the suspicious mail, and hazardous materials teams responded to the scene.

Very few details were immediately released.

The FBI released a statement Monday night saying the agency is working with police and the U.S. Postal Service, but, "At this point it is too early to say where this investigation may lead or to release any details about the letters or locations."

A Washington County Sheriff's Office spokesman confirmed they received a letter that is part of this ongoing investigation. The employee who opened it has not shown any signs of illness.

The East Oregonian reported Grant County Sheriff Glenn Palmer was taken to the hospital after opening a letter addressed to him at the sheriff's office containing a white substance.