Protests live updates: Marines make 1st temporary detention in LA

Los Angeles Police Department Chief Jim McDonnell acknowledged the deployment of 700 Marines to the city and said that it presents a "logistical challenge" and "risks confusion."

McDonnell and Los Angeles Mayor Karen Bass spoke at a press conference Monday while hundreds of protesters remain in downtown L.A.

"We're also aware of reports that the President intends or has deployed US Marines to Los Angeles. The introduction of federal military personnel without direct coordination creates logistical challenges and risks confusion during a critical incident," McDonnell said of the Trump administration's decision.

McDonnell also said the LAPD has mobilized officers, allowing them to deploy an additional 400 officers to the scene.

-ABC News' Matt Claiborne

During a press conference on Monday evening, Los Angeles Mayor Karen Bass spoke of the influence President Donald Trump's sweeping immigration policies have had on the community, ahead of the spate of protests that have rocked the city.

"I can’t emphasize enough the level of fear and terror that is in Angelenos right now, not knowing if tomorrow or tonight it might be where they live, it might be their workplace, should you send your kids to school, should you go to work," Bass said.

The mayor placed blame on the escalation of protests in the city on the Trump administration, saying, "On Thursday, the city was peaceful. On Friday, it was not because of the intervention of the federal government."

As immigration protests continue into the fourth night in Los Angeles, tensions between demonstrators and law enforcement rise in the downtown area.

Police said protestors in the crowd began throwing objects at the officers at the intersection of Temple St. and Los Angeles Ave.

Law enforcement then began discharging less lethal force after telling protesters to "clear the area."

California Gov. Gavin Newsom announced that he is sending over 800 additional state and local law enforcement officers to Los Angeles.

"We’re working with local partners to surge over 800 additional state and local law enforcement officers to ensure the safety of our LA communities," Newsom wrote on X on Monday evening.

The additional officers include over 640 California Highway Patrol officers and over 240 officers from neighboring jurisdictions, according to a press release from the governor's office.

The announcement comes amid the governor's criticism and lawsuit against President Donald Trump and his administration for deploying 4,000 National Guard troops and 700 Marines to the city.

"Chaos is exactly what Trump wanted, and now California is left to clean up the mess," Newsom said.