This is an archived article that was published on sltrib.com in 2010, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.
Hill Air Force Base security units swept into a dozen buildings at the northern Utah installation Thursday morning, evacuating hundreds of people after receiving a bomb threat.
Base spokesman Richard Essary said the anonymous call was made about 8:30 a.m. to one of the base's fitness centers, and emergency personnel quickly cleared that building and others nearby. Explosives experts conducted an extensive search but found nothing, and normal operations had resumed by 11 a.m.
The base remained under heightened security for much of Thursday as several hundred people were evacuated and the buildings swept.
No further details were being released Thursday. The incident remains under investigation, Essary said.
