Some 10,000 people gathered in Salt Lake City for a "No Kings" rally and march as President Donald Trump was overseeing a military parade in Washington, D.C. About an hour into the march, shots were fired.

Salt Lake City police are investigating two self-described "peacekeepers" after a fatal protest shooting left one dead and one injured.

The Salt Lake City Police Department has released new details following a fatal shooting during the “No Kings” demonstration in downtown

Salt Lake City police said​ in a post to social media that the shooting was "possibly associated" with a "No Kings" demonstration.

Arturo Gamboa, 24, is taken away in handcuffs on a gurney and yells that he was shot during the “No Kings” protest and march in Salt Lake City on Saturday. A 39-year-old man died Saturday after being shot during the protest, police said. (Scott G Winterton, Deseret News)

The Salt Lake City Police Department is investigating a shooting that occurred during a “No Kings” protest Saturday night, leaving one person with critical injuries. An estimated 10,000 people were marching at the time.

Detectives believe the victim was at the demonstration as a bystander and “was not the intended target of the gunfire.”

No Kings” protests, said in an emailed statement to FOX 13 News on Tuesday that the “peacekeeper” was a volunteer and military veteran.

Utah resident Arthur Folasa Ah Loo, 39, died Saturday after he was shot during a large “No Kings” protest in downtown Salt Lake City. Ah Loo — an “innocent bystander,” fashion designer and former “Project Runway” contestant — was shot by a member of a “peacekeeping” group who fired at a

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