Add Yahoo as a preferred source to see more of our stories on Google. The FBI and Postal Service are investigating suspicious mail containing a white powder substance that was sent to election offices ...

Phillipsburg police reported receiving multiple calls about a mysterious “white powder-like substance located along the sides of various streets in Alpha” on Monday morning. They urged parents to keep ...

Efflorescence is the white powdery substance you might notice on basement walls, concrete surfaces, or masonry materials. It forms when water moves through a porous material like concrete or brick, ...

Three people were briefly hospitalized after a "white powdery substance" exploded in a Colorado home on Tuesday. Arapahoe County deputies say a family found a small container on the front porch of ...

A hazmat crew from the National Guard's Civilian Support Team investigates after a suspicious package was delivered to election officials at the Missouri Secretary of State's Jefferson City, Mo.

JEFFERSON CITY, Mo. -- The FBI and Postal Service are investigating suspicious mail containing a white powder substance that was sent to election offices in at least 16 states this week, according to ...