A stretch of U.S. 163 in southern Utah's San Juan County had been reopened by early Tuesday morning after bomb disposal experts investigating a threat to a tour bus turned up nothing.
Utah Highway Patrol Cpl. Todd Johnson confirmed that "no explosives were found and the road was reopened at 12:14 a.m."
The FBI, given the interstate and public transportation aspects of the threat, was leading the investigation. No details on the exact content of the threat, or how it was received, were released.