Salt Lake City police are investigating the roles of two self-described "peacekeepers" following a fatal shooting at Saturday's protest that left one person dead and another injured, raising questions about unauthorized security at public demonstrations.

In Los Angeles, 38 people were arrested downtown on Saturday night, police said Sunday. In Huntington Beach, police arrested a convicted felon they said had a loaded handgun.

Protests are taking place in Florida, nationwide on June 14 to object President Trump's alleged birthday plans to celebrate with a military parade.

Army intelligence analysts are monitoring civilian-made ICE tracking tools, treating them as potential threats, as immigration protests spread nationwide.

A man was arrested Saturday after the Texas Department of Public Safety identified a “credible threat” toward legislators attending Saturday’s “No Kings” protest at the Texas State Capitol. A DPS trooper arrested the suspect in La Grange,

Authorities have arrested and charged a man who allegedly brandished a handgun during the 'No Kings' protest in Nashville.

Both protesters and counter-protesters spoke out on Saturday during multiple ‘No Kings’ protests held in the Grand Strand.

The organizers of this weekend's upcoming "No Kings" protests have issued a video reminding people about the event. The video, released on the No Kings website, reminds those planning to attend of details and calls on people to join the protests.