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

During the press conference on Tuesday, Los Angeles officials said 23 businesses were looted overnight, causing damage that is estimated to be in the millions.

The damage was one of the factors that went into the curfew being put in place, Mayor Karen Bass said.

"Clearly, after the violence that took place last night -- 23 businesses looted -- and just the extensive widespread nature of the vandalism, we reached a tipping point," she said.

Los Angeles Police Department Chief Jim McDonnell shared an update on protest arrests on Tuesday evening, saying there were 197 people detained in the downtown area.

The chief said 130 people were arrested in the Alameda area and an additional 67 were taken into custody after unlawfully occupying the 101 Freeway near Commercial Street.

"Let me be clear that this behavior, blocking freeways, city streets and on ramps, refusing to comply with lawful dispersal orders and interfering with public safety operations, is dangerous, unlawful and won't be tolerated," McDonnell said.

-ABC News' Tristan Maglunog

Los Angeles Mayor Karen Bass announced that a curfew will be in effect for protest-impacted parts of downtown Los Angeles beginning Tuesday night.

The curfew will be in effect from 8 p.m. Tuesday to 6 a.m. Wednesday, the mayor said during a press conference.

Bass said the curfew, which spans one-square mile in the downtown area, will likely be in place for multiple nights.

"Law enforcement will arrest individuals who break the curfew, and you will be prosecuted," the mayor said.

Los Angeles Mayor Karen Bass took to X on Tuesday to say she's monitoring the ongoing protests in the downtown area and is "preparing to take new action to protect our communities."

It comes as local leaders have considered implementing a curfew in the area.

"Stay alert and be ready to follow any safety measures that may be announced soon," Bass said.