A federal appeals court will hear arguments on Tuesday on President Donald Trump's authority to deploy the National Guard and Marines to Los Angeles amid protests and civil unrest, days after a lower court ruled that the president unlawfully called the National Guard into service.

The Marines wearing combat gear and carrying rifles are taking over some posts from National Guard members who were deployed to the city after the protests erupted last week. Those protests sparked dozens more over several days around the country, with some leading to clashes with police and hundreds of arrests.

A federal appeals court in San Francisco is set to hear arguments on whether the Trump administration should return control of National Guard troops to California.