LOS ANGELES — One day after Los Angeles Mayor Karen Bass imposed a curfew to address protests related to Immigration and Customs Enforcement raids in the city, she said the curfew will continue until there are no longer any arrests and the Trump administration changes its policies.

First imposed Tuesday night, the curfew covers a 6-square-mile section of a city that is 500 square miles from 8 p.m. to 6 a.m.

"If there are raids that continue, if there are soldiers marching up and down our street, I would imagine the curfew will continue," Bass said Wednesday. "I am hoping we will not have any arrests tonight."

The Los Angeles Police Department said Wednesday that it had arrested 223 people during Tuesday's protests, most of them for failure to disperse and for curfew violations. Two officers were also injured.

Since the protests began on Friday, 157 people have been arrested for assault and obstruction-related charges, including the attempted murder of a police officer with a Molotov cocktail, White House press secretary Karoline Leavitt said Wednesday.

The U.S. Justice Department said it has charged four Southern California residents with assault on a federal officer and possession of an unregistered destructive device in relation to the recent LA protests.

"A week ago, everything was peaceful in the city of LA, and all the representatives behind me, in their cities as well," Bass said at a news conference at City Hall, where she was joined by the leaders of more than 30 nearby cities who stood united against the Trump administration's ICE raids, militarization of the California National Guard and deployment of 700 Marines. "Things began to be difficult on Friday when the raids took place. That is the cause of the problems that have happened in the city of LA and other cities. This was provoked by the White House."

The protests began Friday after federal immigration raids arrested dozens of workers in the Los Angeles area. Protesters blocked a major freeway and set cars on fire over the weekend, and police responded with tear gas, rubber bullets and flash-bang grenades.

Thousands of people have peacefully rallied outside City Hall, and hundreds more protested outside a federal complex that includes a detention center where some immigrants are being held following workplace raids.

Despite the protests, immigration enforcement activity has continued throughout the county, with city leaders and community groups reporting ICE present at libraries, car washes and Home Depots. School graduations in Los Angeles have increased security over fears of ICE action, and some have offered parents the option to watch on Zoom.

Leavitt said Wednesday that 330 undocumented immigrants have been arrested during the recent immigration enforcement actions in Los Angeles. Of those, she said 113 had prior criminal convictions. 

Bass said the federal immigration enforcement actions that have taken place in the city of LA over the past five days could occur in any of the other 87 cities that make up the greater LA region that is home to 10 million people.

The mayor of Downey, just south of Los Angeles, said Wednesday that ICE had visited a Home Depot and an LA Fitness earlier in the morning and arrested an elderly man who was dropping off his granddaughter at preschool. 

Some 2,000 National Guard soldiers are in Los Angeles, and about half of them have been protecting federal buildings and agents, said Army Maj. Gen. Scott Sherman, head of Task Force 51, which is overseeing the deployment of National Guard and Marines to Los Angeles.

About 700 Marines will soon join the Guard troops, but they are still undergoing training and will not be mobilized Wednesday, Sherman said. Another 2,000 Guard troops should be on the streets by Thursday, he said.

Democratic Gov. Gavin Newsom has accused Trump of drawing a "military dragnet" across the nation's second-largest city with his escalating use of the National Guard, which Trump activated, along with the Marines, over the objections of city and state leaders.

Newsom asked a court to put an emergency stop to the military helping federal immigration agents. The assistance includes some guardsmen now standing protectively around agents as they carry out arrests.

The governor said the military presence would only heighten tensions and civil unrest. A judge set a hearing for Thursday, giving the administration several days to continue its activities.

The change moves the military closer to engaging in law enforcement actions such as deportations, as Trump has promised as part of his immigration crackdown. The Guard has the authority to temporarily detain people who attack officers, but any arrests would be made by law enforcement.

The president posted on the Truth Social platform that the city "would be burning to the ground" if he had not sent in the military.