US Marines will join National Guard troops on the streets of Los Angeles within two days, officials said on Wednesday, and would be authorized to detain anyone who interferes with immigration officers on raids or protesters who confront federal agents, Reuters reported.

US President Donald Trump ordered the deployments over the objections of California Governor Gavin Newsom, sparking a national debate about the use of the military on US soil and animating protests that have spread from Los Angeles to other major cities, including New York, Atlanta and Chicago.

Los Angeles on Wednesday endured a sixth day of protests that have been largely peaceful but occasionally punctuated by violence, mostly contained to a few blocks of the city's downtown area.

The protests broke out last Friday in response to a series of immigration raids. Trump in turn called in the National Guard on Saturday, then summoned the Marines on Monday, according to Reuters.