A California congresswoman was the target of a threatening package on Tuesday.
A package labeled anthrax was found at the Los Angeles office of Democratic U.S. Rep. Maxine Waters.
Police evacuated the scene as a precaution.
HazMat crews with the Los Angeles Fire Department determined the package was not dangerous.
Investigators are trying to find out who left the package at the office.
Waters is a vocal critic of President Trump, even calling for his impeachment.