Federal Agencies Investigate Letters Containing White Powder
The FBI, US Postal Inspection Service, and Capitol Police are investigating suspicious letters containing white powder, with some mailings intercepted before delivery.
New York, NY, October 16, 2026 —
The FBI, the US Postal Inspection Service and the Capitol Police are investigating suspicious letters that contained white powder, according to the available summary of the incident. Some of the mailings were intercepted before they could be delivered.
The summary does not identify where the letters were sent or intercepted, when the investigation began, or how many mailings were involved. It also does not say whether anyone received or handled other letters, whether the powder was tested, or whether investigators have identified a sender or motive.
No findings about the substance or any potential threat were provided. The fact that the letters contained white powder does not, on its own, establish what the material was. The agencies’ investigative steps and any conclusions reached so far were not described.
The summary also does not specify whether the three agencies are examining the same mailings or coordinating across separate cases. It provides no information about arrests, charges, injuries, building or postal-service disruptions, or any official instructions to the public. Those details remain unknown based on the information available.
For now, the confirmed details are limited to the agencies involved, the presence of white powder in suspicious letters, and the interception of some mailings before delivery. Further information about the investigation or the substance was not provided.
Story summarized from the original created by Victor Nava on nypost.com, see more information here.
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