SALT LAKE CITY — Initial tests of white powder that was found Friday in an envelope and prompted the partial evacuation of a Mormon church office building revealed the substance was not dangerous or explosive, authorities said.
Six church employees exposed to the powder showed no problematic symptoms and were allowed to go home, Salt Lake Fire spokesman Jasen Asay said.
The FBI was involved in the investigation, and the powder was sent to the state crime lab, Asay said. Testing at the lab showed that the substance was not dangerous.
Employees of The Church of Jesus Christ of Latter-day Saints who work at the 28-story building began evacuating after the envelope was discovered in the third-floor missionary department, Asay said.
Arriving firefighters allowed most workers to return to the building.
Those who worked where the envelope was found were examined, he said, and ordered to wash their hands and face as part of decontamination procedures.
The fire department's hazardous materials team tested the white powder.
After those tests came back negative, and the six people showed no signs of vomiting or nausea, fire officials determined there was no threat. Business resumed as usual in the mid-afternoon.
Asay said it had not been determined if the envelope contained a note or anything else inside.
The building is located nearby the Mormon temple, a popular tourist attraction in the heart of Salt Lake City.