1 of 3 | U.S. Marines deployed to Los Angeles stopped and detained an American citizen trying to enter a federal building this week, as protests over federal immigration raids in that city (pictured) continue to escalate. Photo by Jim Ruymen/UPI | License Photo

June 14 (UPI) -- Local police deployed pepper spray and non-lethal munitions late Saturday afternoon in Los Angeles as the "No Kings" protest there began to devolve into a more confrontational event.

Many protesters refused to leave local streets after being warned by local police, who then deployed the gas and non-lethal munitions at about 5 p.m. PDT.

The city still has an 8 p.m. curfew that lasts until 6 a.m., so the protest is scheduled to end when the curfew takes effect.

The California National Guard and Marines remain deployed in Los Angeles to help temper unrest in that city.