A powdery substance was found in an envelope at the federal prison in McCreary County Tuesday afternoon.
Officials say a routine check of the mail revealed a powdery substance in a letter addressed to a former inmate at the facility.
The mail room was quickly put on lock down. We're told 12 people who were in the mail room at the time were decontaminated at the scene as a precautionary measure. Two of them were sent to Lake Cumberland Regional Hospital for observation.
Officials field tested the substance, and initial results indicated that the substance was ricin. However a sample sent off the the State Public Health Laboratory in Frankfort for identification, revealed it was not the deadly poison. No word yet on what the powder actually is.
Several state and federal agencies, including the FBI, responded to prison to investigate.
The Kentucky Division of Emergency Management says the State Emergency Operations Center was activated.