The U.S. Department of Agriculture closed offices in five states, including Colorado, on Tuesday after receiving anonymous threats.
USDA received “several anonymous messages that are concerning for the safety of USDA personnel and its facilities,” according to a statement by Matt Herrick, the department’s director of communications.
The Agriculture Department closed facilities in these locations until further notice: Fort Collins, Colorado; Hamden, Connecticut; Beltsville, Maryland; Raleigh, North Carolina; and Kearneysville and Leetown, West Virginia.
The closures at the six facilities impact at least eight agencies, including the Food Safety and Inspection Service and the Forest Service.
The Agriculture Department says it is working with the FBI and local law enforcement to determine if the threats are credible.