Authorities are investigating a suspicious envelope sent to U.S. Rep. Joe Garcia that was packed with white powder and had the words "tea party" printed as a return address.
The envelope was found this morning at the Democrat's Key West office in a Monroe County government building on Simonton Street, spokeswoman Nicole Cueto said.
"We notified police immediately," she said.
The Postal Service and U.S. Capitol Police will investigate the case along with Key West Police. None of the agencies comment on ongoing investigations.
Anonymous threats are somewhat common with members of congress. Last year, Sen. Marco Rubio received police protection at his West Miami home and in Washington over what authorities would only call "credible" threats he received.