The FBI and the U.S. Postal Inspection Service were investigating the origin of suspicious packages that have been sent to or received by elections officials in more than a dozen states.

The FBI and the U.S. Postal Inspection Service on Friday were investigating the origin of a suspicious package that was sent to the Minnesota Secretary of State’s Office.

A suspicious package that led to the evacuation of the Minnesota Secretary of State’s office contained a “nonhazardous” powder, officials say.