The Federal Bureau of Investigation (FBI), the United States Postal Service (USPS), and the Capitol Police have launched an investigation into suspicious packages containing “unknown substances” sent to offices of members of Congress and election officials across the United States. The investigation covers packages received by Congressional members and election authorities nationwide. Details regarding the nature of the “unknown substances” have not yet been released by authorities. Law enforcement agencies are working to determine the source and intent behind the mailings. This incident prompts heightened security measures for government officials and election infrastructure in the United States. The FBI is leading the investigation, coordinating with the USPS and Capitol Police to assess the potential threat. Further updates will be provided as the investigation unfolds.