Five people were shot, three fatally, at the festival in Utah's West Valley City after an altercation broke out between two groups of people.

The other victims were an 18-year-old man and a 41-year-old woman, the police said. The gunfire stemmed from a verbal altercation.

Boy, 16, arrested after three people, including 8-month-old infant, shot dead at festival in Utah - A 41-year-old woman bystander and an 18-year-old man were also killed.