MOUNT VERNON — A bomb threat early Saturday morning reportedly resulted in the evacuation of Continental Tire in Mt. Vernon.

According to Jefferson County Sheriff Jeff Bullard, around 6:43 Saturday morning, a note was found indicating a bomb threat.

Bullard says the Secretary of State Bomb Squad responded to the scene and searched the facility for approximately four hours before workers allowed back into the building when no bomb was located.

The threat remains under investigation.