Los Angeles, June 12 -- Los Angeles police began arresting people in the city's downtown late Tuesday, as groups gathered in violation of an overnight curfew after a fifth day of protests against Donald Trump's immigration crackdown. Looting and vandalism in the second-biggest US city have marred the largely peaceful protests over ramped-up arrests by immigration authorities. Protests against immigration arrests by federal law enforcement have also sprung up in cities around the country, including New York, Atlanta, Chicago, San Francisco and Austin. The LA demonstrations, which began Friday, and isolated acts of violence prompted Trump to take the extraordinary step of sending in troops, over the objection of the state governor. The protests again turned ugly after dark Tuesday, but an hour into the overnight curfew only a handful of protesters were left downtown, with police making several arrests as they warned stragglers to leave. "Multiple groups continue to congregate on 1st St between Spring and Alameda" within the designated downtown curfew area, the Los Angeles Police Department (LAPD) wrote on X late Tuesday. "Those groups are being addressed and mass arrests are being initiated." Police arrested 25 people on suspicion of violating the curfew as of Tuesday evening, the Los Angeles Times reported citing an LAPD spokesperson.P10...