In what she termed an "attack" on her district office, Rep. Norma Torres of the Inland Empire says two letters were sent there containing a "white, powdery substance."
Authorities responded to the Hollywood Hills home of comedian Eric Idle after a resident opened an envelope containing a suspicious powder.
The letter was addressed to Donald Trump Jr. and sent to the couple's apartment on East 54th Street in Manhattan.
An infant was found dead and an 8-year-old girl and a woman hospitalized after the three victims were discovered outside a South Los Angeles store.
A Riverside County Sheriff's Department administration building was evacuated after a package containing a white powder-like substance was found on Monday.
A powdery substance thrown at a Peach Bowl staffer tested negative for biological, chemical, radiological and nuclear entities.