Authorities made "mass arrests" near downtown Los Angeles late Tuesday after a curfew came into effect following intense protests against immigration enforcement raids and the escalation of military presence across the nation’s second-largest city.

After the protests, police urged businesses and residents to document all damage and vandalism in online police reports.

Los Angeles Mayor Karen Bass declared a partial curfew starting at 8 p.m. local time Tuesday to 6 a.m. Wednesday. The curfew covers one square mile of downtown Los Angeles and is part of the city's strategy to quell ongoing looting and vandalism linked to the protests.

Shortly after 9 p.m. local time on Tuesday, the Los Angeles Police Department announced that multiple groups congregated on 1st Street between Spring and Alameda. "Those groups are being addressed and mass arrests are being initiated," the LAPD said. "Curfew is in effect."

The curfew, which Bass expects to last for several days, does not apply to residents who live in the designated area, people experiencing homelessness, credentialed media, or public safety and emergency personnel, according to Los Angeles Police Chief Jim McDonnell. The police chief noted that there has been an escalation of "unlawful and dangerous behavior" since Saturday.