A 16-year-old boy shot five people in a confrontation between two groups at a carnival in a Salt Lake City suburb, killing three of them including an 8-month-old infant, police said.

The shooting happened on the final night of WestFest, a celebration of the multiple cultures in West Valley City.

A 39-year-old man died Saturday night after being shot during Salt Lake City’s “No Kings” protest while a crowd of about 10,000 people marched near 151 S. State Street, the Salt Lake City Police Department confirmed Sunday.

An innocent bystander at a “No Kings” protest in Utah was shot and killed by a “peacekeeper” who was aiming for a different man pointing an AR-15-style rifle toward the crowd, witnesses told Salt Lake City police.