A person was left with life-threatening injuries after a shooting during a demonstration in downtown Salt Lake City, local police said. Officers heard gunshots at around 7:56 p.m. local time and found a person critically injured.

Three people, including an eight-month-old infant, were shot and killed and two teenagers were wounded following an altercation between two groups at an annual carnival in the suburbs of Salt Lake City, Utah, on Sunday night, police said.