U.S. Senator Marco Rubio's office reported receiving a suspicious delivery Friday afternoon, sparking enough fear that the FBI is now investigating.
Keith Kameg, a spokesman for the Florida Deparment of Law Enforcement, said the letter was delivered to Rubio's office on the 21st floor of the state Capitol. Rubio opened the office just last month.
The scene was secured and no injuries were reported, Kameg said. The FBI will test the letter off-site to determine if there is anything dangerous is in its contents.