Five people were shot — three of them fatally — at an annual carnival outside Salt Lake City, Utah, authorities said. One of those killed was an infant, police said.

A bystander was fatally shot after security members at the demonstration confronted a man who was running toward the crowd with an AR-15-style rifle, the police said.

Note to readers •The Salt Lake Tribune has made this story free to all.A marcher critically wounded in a shooting at Salt Lake City’s 10,000-strong “No Kings” protest on Saturday night has died, police reported Sunday afternoon.