EVANSTON, Wyo. -- A natural gas storage site in southwestern Wyoming exploded in flames but no one was hurt, as firefighters waited for daylight to tackle the blaze, officials said Sunday.
Crews responded late Saturday afternoon to a report of an explosion at the facility, 15 miles north of Evanston in Uinta County, near the Utah line.
"Some sort of pressure valve malfunctioned and exploded, resulting in a fire at the facility," said Eric Quinney, chief administrative officer for Uinta Fire and Ambulance.
He said the four people working at the site at the time were uninjured.
The facility, which includes a main structure and pipelines, is in an isolated area and the blaze poses no threat to people or other structures, he said. Companies use the site to store natural gas underground.
Early Sunday, crews were staged about a mile away and keeping a close watch, poised to take action if needed.
"With everyone was accounted for, we're pretty much at this point letting it burn," Quinney said. " We don't want to take any unnecessary risk."
He said teams were evaluating the situation with plant workers and determining the best way to fight the fire in the morning.
Quinney described the blaze as not huge and flaring occasionally and then dying down.