LOS ANGELES — Los Angeles leaders imposed a downtown curfew Tuesday on the fifth day of protests against President Donald Trump's immigration crackdown as his use of the National Guard escalated and the governor accused him of drawing a ''military dragnet'' across the nation's second-largest city.
Democratic Gov. Gavin Newsom asked a court to put an emergency stop to the military helping federal immigration agents, with some guardsmen now standing in protection around agents as they carried out arrests. He said it would only heighten tensions and promote civil unrest. The judge chose not to rule immediately, giving the administration several days to continue those activities before a hearing Thursday.
The change moves troops closer to engaging in law enforcement actions like deportations as Trump has promised as part of his administration's immigration crackdown. The Guard has the authority to temporarily detain people who attack officers but any arrests ultimately would be made by law enforcement.
Trump has activated more than 4,000 National Guard members and 700 Marines over the objections of city and state leaders, though the Marines have not yet been spotted in Los Angeles and Guard troops have had limited engagement with protesters. They were originally deployed to protect federal buildings.
As the curfew went into effect, a police helicopter flew over downtown federal buildings that have been the center of protests and ordered people to leave the area. Riot police on horses and foot surrounded a group of a few hundred that had gathered in the area, shouting: ''Move!'' Most of the protesters scattered, with some regrouping and refusing orders to disperse.
Officials said the curfew was necessary to stop vandalism and theft by agitators looking to cause trouble.
Demonstrations have spread to other cities nationwide, including Dallas and Austin, Texas, Chicago and New York, where a thousand people rallied and multiple arrests were made.
In Texas, where police in Austin used chemical irritants to disperse several hundred demonstrators Monday, Republican Gov. Greg Abbott's office said Texas National Guard troops were ''on standby" in areas where demonstrations are planned, Abbott spokesperson Andrew Mahaleris said Tuesday evening.