Authorities investigate letters with 'suspicious substances' sent to congressional, election offices
4 sources·Updated October 16, 2026
Suspicious substance letters
Covered by 4 sources
- Sky News Home·8h agoFBI investigates 'suspicious substances' posted to US election offices
Authorities in the US are investigating letters containing "suspicious substances" that have been posted to congressional and electoral offices.
Read at Sky News Home → - Guardian World·13h agoFBI investigates letters with ‘unknown substance’ sent to US election officials
Election officers in Louisiana and Oklahoma receive a powdery substance, prompting evacuations The FBI and the US Postal Inspection Service are investigating letters sent to state officials and election offices across the country containing an “unknown substance”. Just weeks…
Read at Guardian World → - NPR News Now·19h agoSuspicious mailings to election officials, congressional offices under investigation
The FBI and U.S. Postal Inspection Service are looking into the mailings, some of which included an unidentified powdery white substance.
Read at NPR News Now → - ABC News Politics·23h agoAuthorities investigate letters with 'suspicious substances' sent to congressional, election offices
Federal authorities are investigating letters with “suspicious substances” that have been mailed to congressional and election offices nationwide
Read at ABC News Politics →
