Politics and Public Affairs

US Authorities Probe 'Suspicious Substances' Sent to Election Offices, Senators

Federal authorities in the US are investigating 'potentially hazardous' letters containing 'suspicious substances' sent to congressional and state election offices, just weeks before crucial midterm elections. The FBI and USPIS are tracing the mailings, which have targeted multiple senators and election departments across several states.

By Ron J Jones | 16 October 2026
Close-up of a hand inserting a stamped envelope into a mailbox, symbolizing voting.

Federal authorities in the United States have launched an extensive investigation into multiple instances of "potentially hazardous" letters containing "suspicious substances" that have been sent to congressional and state election offices across the country.

The Federal Bureau of Investigation (FBI) and the US Postal Inspection Service (USPIS) are jointly conducting the probe, confirming their efforts to trace the origins of these "suspicious mailings." Both agencies have indicated that a number of these packages were successfully intercepted by postal services or security personnel before they could be delivered to their intended recipients, mitigating potential risks.

While authorities have refrained from disclosing the precise number of offices targeted in this latest series of incidents, numerous secretaries of state and congressional offices have come forward, publicly reporting their receipt of such alarming correspondence.

Among the recipients are at least five Democratic senators, whose offices reportedly received suspicious letters. The majority of these were intercepted prior to physical delivery. Senator Alex Padilla of California, Senator Chris Murphy of Connecticut, and Senator Kirsten Gillibrand of New York are among those whose offices confirmed the receipt of suspicious mail to the BBC. Further reports, originating from CBS News – a US partner of the BBC – indicate that Senator Chuck Schumer of New York and Senator Lisa Blunt Rochester of Delaware were also sent similar pieces of mail.

Senator Padilla issued a statement to the BBC, highlighting the serious implications of these events. He stated, "This incident is a stark reminder of the very real danger facing those who serve the public and who help administer our elections in the face of increasingly hostile political rhetoric." His remarks underscore a growing concern among public officials regarding the safety of those involved in government and democratic processes.

Beyond congressional representatives, several state election offices have also found themselves targeted. The Delaware Department of Elections confirmed that its office received and subsequently opened a letter containing a white powdery substance on Thursday. Staff members reportedly adhered to established security protocols designed for handling suspicious mail, promptly initiating safety measures.

In other states, both the Oklahoma State Election Board and the Louisiana secretary of state's office have publicly announced this week that they, too, received letters containing white powder. The incident in Louisiana led to the temporary evacuation of the secretary of state's office on Tuesday after a staff member opened one of the suspicious packages. Following a thorough investigation by law enforcement, which found no evidence of harmful substances, the office was subsequently reopened.

Ohio's Secretary of State, Frank LaRose, also reported that his office was the intended recipient of a letter containing white powder, although this particular item was intercepted by the USPIS before it could be delivered. Additionally, suspicious packages were reported at prominent state government buildings, including the New York State Capitol in Albany and the Wyoming State Capitol in Cheyenne, based on emergency responder scanner feeds reviewed by the BBC.

The timing of these incidents is particularly notable, occurring just weeks before the crucial US midterm elections. These elections are poised to determine the balance of power within Congress, a factor that has historically heightened political tensions. In a joint statement issued on Thursday, the FBI and USPIS reaffirmed their commitment to public safety and democratic integrity. "The FBI and the US Postal Inspection Service will continue to safeguard the public and secure elections for American citizens," the agencies declared.

This latest wave of suspicious mailings is not an isolated occurrence, echoing a series of similar security concerns that have affected US election officials in recent years. Prior to the upcoming 2024 election cycle, officials responsible for managing votes in as many as 17 states reported receiving suspicious packages. Furthermore, a year earlier, a distinct wave of suspicious envelopes, some of which were reportedly laced with the potent opioid fentanyl, were dispatched to election offices in at least five states, prompting widespread alerts and safety measures.