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Laura Seitz, Deseret News
Firefighters put out a fire near 4730 S. Riverside Drive in Murray on Friday, July 18, 2014. Construction workers were grinding metal on a structure they were building when a spark ignited several stacked wooden pallets nearby, officials said. The pallets caught fire, and the fire spread to several wooden railroad ties holding up metal containers.

MURRAY — Summer heat turned a spark into a two-alarm fire at a fencing company Friday.

Employees were doing some metal work at Aftec fence and metalwork company, 4730 S. Riverside Drive, when a spark landed on a pile of pallets in the warehouse and ignited about 9:30 a.m., Murray Deputy Fire Marshal Pat Killion said.

"There might be some really heavy, creosote-type large timbers back there that they use for moving some of their heavy stuff, and that's the problem right now," Killion said as crews monitored potential hot spots after dousing the fire.

Crews from six agencies responded to the two-alarm blaze that sent a plume of dark smoke over the area and briefly closed nearby 500 West.

Firefighters weren't able to completely evaluate the building's condition because of damage to the roof and Friday's heat, Killion said.

Two employees were in the building when the fire broke out and attempted unsuccessfully to douse the flames with fire extinguishers and a garden hose, Killion said.

"It was just too hot," Killion said.

— McKenzie Romero