Initial testing of the powder indicates it was boric acid, officials said. Envelopes containing a white powder that were found at a government building in New York City housing an Immigration and ...

None of the mail has been deemed hazardous so far but it has caused evacuations. The FBI and Postal Service are investigating suspicious mail containing a white powder substance that was sent to ...

WASHINGTON — The Secret Service is investigating a “small amount” of a “white, powdery substance” discovered in a work area in the West Wing on Sunday, a Secret Service official said. The substance — ...

Police evacuated Federal Plaza in Manhattan after five envelopes containing a white powder were discovered Thursday afternoon, officials said. Two people were exposed to the powder. Cops raced to the ...

Donald Trump Jr., son of former President Donald Trump, received a letter containing a white powdery substance at his Florida home on Monday afternoon, officials said. Trump Jr. received the letter at ...

Federal officials are investigating after a “white powdery substance” was removed from Immigration and Customs Enforcement offices in Dallas and Irving Friday. Law enforcement and fire and rescue ...