This is an archived article that was published on sltrib.com in 2014, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

A stray firework injured about 10 people Saturday night at the end of the Roy Days festival.

Crowds had gathered at West Park, at 4500 S. 2900 West, for the annual festival that always concludes with a fireworks show. But at the end of this show's explosive finale, a stray firework launched sideways — flying about 4 to 5 feet above the ground — went between the fire department vehicles and blew up near a crowd of about 60 people, said Roy Fire Chief Jason Poulsen.

About 10 people complained of minor burns, and were all treated and released at the scene, Poulsen said.

"Luckily for us, there was no property damage and no real significant injuries," the fire chief said. The fire department is not sure what caused the firework to misfire.

The crowd the firework landed by was made up mostly of children, said attendee Dorian Kunzler on his Facebook page.

"Good thing the EMT's and Paramedics were across the street and were on scene quickly," Kunzler wrote. He saw people who had suffered minor burns and "were shaken up good. Even my little Anslee after that was telling us she didn't like fireworks anymore."

Twitter: @mikeypanda