The FBI is warning election offices to be on the lookout after threatening letters containing suspicious substances were sent to the offices of multiple secretaries of state throughout the country. A senior law enforcement official confirms elections officials in at least six states received packages on Monday, but so far none of the packages have been found to contain any actual hazardous material. Secretaries of state, attorney general offices and state election offices in Nebraska, Iowa, Kansas, Tennessee, Wyoming and Oklahoma were targeted. The FBI, United States Postal Inspection Service (USPIS), and state and local law enforcement partners are investigating multiple letters containing suspicious substances which have been mailed to Secretary of State's offices. The incident is also the second time in the past year that threats have hit multiple state election offices simultaneously.

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