LOS ANGELES – On Sunday, tear gas was used against protesters in Los Angeles after some of them approached National Guard troops and hurled insults, following President Donald Trump’s controversial military deployment despite opposition from both the governor and the mayor.

The clash occurred as hundreds gathered in front of the Metropolitan Detention Center in downtown Los Angeles. There, several newly-deployed National Guard members stood in a line, equipped with plastic riot shields.

Footage captured uniformed officers deploying smoke-filled canisters, advancing towards and pushing back the demonstrators. The reason behind the use of the chemical agents and which agency was responsible remains unclear.

Minutes later, loud popping sounds erupted again, as some protesters chanted “go home” and “shame.” One person was taken to the ground by uniformed officers. Another appeared to be bleeding from their head.

Around 300 National Guard troops arrived in Los Angeles early Sunday on orders from Trump, who accused Gov. Gavin Newsom and other Democrats of failing to stanch recent protests targeting immigration agents.

The move appeared to be the first time in decades that a state’s national guard was activated without a request from its governor, a significant escalation against those who have sought to hinder the administration’s mass deportation efforts.

Deployment follows days of protest

The deployment followed two days of protests that began Friday in downtown Los Angeles before spreading on Saturday to Paramount, a heavily Latino city south of the city, and neighboring Compton.

As federal agents set up a staging area Saturday near a Home Depot in Paramount, demonstrators attempted to block Border Patrol vehicles, with some hurling rocks and chunks of cement. In response, agents in riot gear unleashed tear gas, flash-bang explosives and pepper balls.

Tensions were high after a series of sweeps by immigration authorities the previous day, as the weeklong tally of immigrant arrests in the city climbed above 100. A prominent union leader was arrested while protesting and accused of impeding law enforcement.

The deployment of the National Guard came over the objections of Gov. Gavin Newsom, who accused Trump of a “complete overreaction” designed to create a spectacle of force.

The recent protests remain far smaller than past events that have brought the National Guard to Los Angeles, including the Watts and Rodney King riots, and the 2020 protests against police violence, in which Newsom requested the assistance of federal troops.

The last time the National Guard was activated without a governor’s permission was in 1965, when President Lyndon B. Johnson sent troops to protect a civil rights march in Alabama, according to the Brennan Center for Justice.

Trump says there will be ‘very strong law and order’

In a directive Saturday, Trump invoked a legal provision allowing him to deploy federal service members when there is ”a rebellion or danger of a rebellion against the authority of the Government of the United States.”

He said he had authorized the deployment of 2,000 members of the National Guard.

Trump told reporters as he prepared to board Air Force One in Morristown, New Jersey, Sunday that there were “violent people” in Los Angeles “and they’re not gonna get away with it.”

Asked if he planned to send U.S. troops to Los Angeles, Trump replied: “We’re gonna have troops everywhere. We’re not going to let this happen to our country. We’re not going to let our country be torn apart like it was under Biden.” He didn’t elaborate.

Trump also said that California officials who stand in the way of the deportations could face charges. A Wisconsin judge was arrested last month on accusations she helped a man evade immigration authorities.

“If officials stay in the way of law and order, yeah, they will face charges,” Trump said.

Newsom called Trump on Friday night and they spoke for about 40 minutes, according to the governor’s office. It was not clear if they spoke Saturday or Sunday.

There was some confusion surrounding the exact timing of the guard’s arrival. Shortly before midnight local time, Trump congratulated the National Guard on a “job well done.” But less than an hour later, Los Angeles Mayor Karen Bass said troops had yet to arrive in the city.

Defense secretary threatens to deploy active-duty Marines ‘if violence continues’

In a statement Sunday, Assistant Homeland Security Secretary Tricia McLaughlin accused California’s politicians and protesters of “defending heinous illegal alien criminals at the expense of Americans’ safety.”

“Instead of rioting, they should be thanking ICE officers every single day who wake up and make our communities safer,” McLaughlin added.

The troops included members of the California Army National Guard’s 79th Infantry Brigade Combat Team, according to a social media post from the Department of Defense.

In a signal of the administration’s aggressive approach, Defense Secretary Pete Hegseth also threatened to deploy active-duty Marines “if violence continues” in the region.

Vermont Sen. Bernie Sanders said the order by Trump reflected “a president moving this country rapidly into authoritarianism” and “usurping the powers of the United States Congress.”

House Speaker Mike Johnson, a staunch Trump ally, endorsed the president’s move, doubling down on Republicans’ criticisms of California Democrats.

“Gavin Newsom has shown an inability or an unwillingness to do what is necessary, so the president stepped in,” Johnson said.

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Offenhartz reported from New York. Associated Press writer Michelle Price contributed to this report from Bridgewater, New Jersey.