VIDEO: A tractor-trailer, parked at a loading dock at a Smith’s in Sandy and filled with fireworks, caught fire Thursday morning.
Crews responded to the fire near 2000 East and 9400 South just after one a.m.
Investigators said the cause of the fire is suspicious.
“Concerning, definitely, there are some things that are suspicious about it,” said Ryan McConaghie, Deputy Chief of the Sandy City Fire Department.
Firefighters said the fire didn’t start in the trailer. It appears it started underneath and they could see several wood pallets stacked under the trailer when they arrived.
“That fire spread into the tractor-trailer box that they found out was full of fireworks,” McConaghie said. “Started the fireworks and started burning in the interior that opened up through the aluminum roof of that tractor-trailer and then it spread into the Smith’s building loading dock area and that actuated the fire sprinklers that helped put out the fire on the inside.”