FBI agents found no dangerous material after a bomb threat temporarily halted construction of a National Security Agency data center at Utah's Camp Williams Monday.
The U.S. Army Corps of Engineers evacuated the site about 11:30 a.m. after receiving the threat, said FBI spokeswoman Debbie Dujanovic Bertram. She would not disclose how the threat was conveyed or what specific action was threatened.
Agents searched the area and found nothing suspicious, Bertram said. They now are investigating the origin of the threat.