JACKSONVILLE, Fla. — The Federal Bureau of Investigation in Jacksonville is investigating letters sent to the State Attorney’s Office containing an unknown substance, they confirmed Tuesday.
The substance is being tested at a local laboratory, according to FBI Jacksonville.
The U.S. Postal Inspector, Jacksonville Sheriff’s Office and Jacksonville Fire and Rescue Department are also investigating.
Anyone with information on this incident should call the FBI, U.S. Postal Inspection Service, or local law enforcement.
You can also submit a tip at tips.fbi.gov.