The FBI and the U.S. Postal Service are still investigating a string of suspicious envelopes that were delivered to or received by the secretary of state offices in at least 15 states, including Missouri.

The FBI and the U.S. Postal Inspection Service are investigating after suspicious mail was sent to several election officials across the U.S. including here in Colorado.

The Federal Bureau of Investigation has confirmed no suspicious letter was sent to the Maine Secretary of State's Office, which backtracked an initial statement about a suspicious piece of mail addressed to Secretary Shenna Bellows.

Authorities are investigating a suspicious package addressed to the Colorado Secretary of State's Office. The package was sent with a return address to the "U.S. Traitor Elimination Army" and contained a white powdery substance,

A suspicious package was sent to the Colorado secretary of state but was intercepted at a mail facility in Denver Tuesday. The package contained a white powder that investigators say was harmless, according to a press release from the secretary’s office.