In Los Angeles, 38 people were arrested downtown on Saturday night, police said Sunday. In Huntington Beach, police arrested a convicted felon they said had a loaded handgun.

Opponents of President Donald Trump’s administration are set to rally in nearly 2,000 cities and towns this weekend.

The LAPD said on social media that the people in the crowd were throwing "rocks, bricks, bottles and other objects" while they were near the federal building.

The largely peaceful protests during the "No Kings Day" demonstration in downtown Los Angeles took an intense turn in the afternoon. Police ordered the crowd to disperse at about 4:15 p.m. PDT near Alameda Street and Temple Avenue, according to the Los Angeles Police Department's Central Division.

No Kings” demonstrations marched in hundreds of cities on Saturday to protest what organizers describe as President Donald Trump’s authoritarian agenda, including recent immigration raids that have rattled communities across the country.

“The most threatening sound to an oligarch is laughter.”

NBC News correspondent David Noriega reports on the ground in Los Angeles, CA as citizens march in the 'No Kings' protests. "There are a lot of people out here who are the children of immigrants... They feel personally that a lot is at stake for them with these protests,

LAPD is keeping a heavy presence in downtown Los Angeles after clashes with protesters following No Kings Day protests. KCAL's Zach Boetto talks about what happened after an unlawful assembly was declared.