LOS ANGELES — California Gov. Gavin Newsom asked a federal court Tuesday to block the Trump administration from using the National Guard and Marines to assist with immigration raids in Los Angeles, saying the practice would only heighten tensions.

Newsom filed the emergency request after President Donald Trump ordered the deployment to LA of roughly 4,000 National Guard members and 700 Marines following protests driven by anger over the president’s stepped-up enforcement of immigration laws.

The governor’s request said it was in response to a change in orders for the Guard members, who were originally deployed to protect federal buildings. The court documents said sending troops on immigration raids would only escalate tensions and promote civil unrest.

The Marines and another 2,000 National Guard troops were ordered to LA on Monday, adding to a military presence that local officials and Newsom do not want and that the police chief says makes it harder to handle the protests safely.

Marine Corps Gen. Eric Smith said Tuesday that the Marines deployed to the area had not yet been called to respond to the protests and were there only to protect federal officials and property.

The Marines were trained for crowd control but have no arrest authority, Smith told a budget hearing on Capitol Hill.

Paul Eck, deputy general counsel in the California Military Department, said the agency was informed that the Pentagon plans to direct the California National Guard to start providing support for immigration operations. That support would include holding secure perimeters around areas where raids are taking place and securing streets for immigration agents, he said in the governor’s emergency request.

According to U.S. officials, the California Guard members who were deployed were authorized to provide protection and secure streets and perimeters around areas where enforcement actions are taking place. The officials, who spoke on condition of anonymity to discuss military operations, said the Guard members are not participating in any of the enforcement actions, but are providing security and have already been doing some of those missions in the Los Angeles area.

Trump left open the possibility of invoking the Insurrection Act, which authorizes the president to deploy military forces inside the U.S. to suppress rebellion or domestic violence or to enforce the law in certain situations. It’s one of the most extreme emergency powers available to a U.S. president.

“If there’s an insurrection, I would certainly invoke it. We’ll see,” he said Tuesday from the Oval Office. “But I can tell you last night was terrible, and the night before that was terrible.”

Trump has described Los Angeles in dire terms that Mayor Karen Bass and Newsom say are nowhere close to the truth.

While protesters blocked a major freeway and set cars on fire over the weekend, the demonstrations in the city of 4 million people have largely been centered in several blocks of downtown. On Monday, they were far less raucous, with thousands of people peacefully attending a rally at City Hall and hundreds more protesting outside a federal complex that includes a detention center where some immigrants are being held following workplace raids across the city.

Los Angeles police said they made over 100 arrests Monday evening, mostly for failing to disperse the downtown area. One person was arrested for assault with a deadly weapon and two police offers were injured, the department said.

Obscene slogans directed at Trump and federal law enforcement remained scrawled across several buildings. At the Walt Disney Concert Hall, workers were busy washing away graffiti Tuesday morning.

In nearby Santa Ana, armored Guard vehicles blocked a road leading to federal immigration and government offices. Workers swept up plastic bottles and broken glass.

Sending in the military is the latest step in the administration’s immigration crackdown as Trump pursues the mass deportations he promised last year during the presidential campaign. The protests have been driven by anger over enforcement that critics say is breaking apart migrant families.

Defense Secretary Pete Hegseth suggested Tuesday that the use of troops inside the U.S. will continue to expand.

“I think we’re entering another phase, especially under President Trump with his focus on the homeland, where the National Guard and Reserves become a critical component of how we secure that homeland,” he said on Capitol Hill.

The mayor and the governor say Trump is putting public safety at risk by adding military personnel even though police say they don’t need the help.

Los Angeles Police Chief Jim McDonnell said he was confident in the police department’s ability to handle large-scale demonstrations and that the Marines’ arrival without coordinating with the police department would present a “significant logistical and operational challenge.”

The protests began Friday after federal immigration authorities arrested more than 40 people across Los Angeles and continued over the weekend as crowds blocked a major freeway and set self-driving cars on fire. Police responded with tear gas, rubber bullets and flash-bang grenades.