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.

WEST VALLEY CITY, Utah — Three people, including an 8-month-old infant, were fatally shot at a Utah carnival after two groups got into an argument, police said. Police officers working at WestFest at Centennial Park in West Valley City saw the two groups Sunday night.

Police say Ah Loo was an innocent bystander caught in the line of fire between peacekeepers and a man with an AR-15-style rifle.

Utah on Monday joined 54 other states and territories in signing onto a $7.4 billion settlement agreement with Purdue Pharma over its alleged role in fueling the opioid epidemic.

One of the hikers “managed to find a small ledge, just enough space to hold on while waiting for help,” troopers said.

The man Utah police describe as an innocent bystander slain after gunfire broke out has been identified as Arthur Folasa Ah Loo.

A Minnesota state lawmaker was assassinated in an allegedly "politically motivated" attack on Saturday. Utah leaders said there has been an uptick of verbal threats against lawmakers in the state. Utah officials of both parties condemned divisive rhetoric that can lead to political violence.

An 18-year-old boy involved in the fight was also shot and killer, police said — while a pregnant woman was injured trying to climb a fence to escape the gunfire. Two teens — a 17-year-old girl and a 15-year-old boy — were also struck in the arm.