By Brad Brooks, Phil Stewart, Idrees Ali and Dietrich Knauth LOS ANGELES (Reuters) -Hundreds of U.S. Marines arrived in the Los Angeles area on Tuesday under orders from President Donald Trump, as the city's mayor declared a curfew for parts of the downtown area and police arrested 197 people in a fifth day of street protests.

The California Governor has sued the U.S. President over the mobilization of the National Guard, calling it “an unmistakable step toward authoritarianism.”

The demonstrations featured more violence and arrests, with some protesters throwing objects at law enforcement, and authorities responding with less-lethal munitions.

President Donald Trump has sent U.S. Marines to Los Angeles in an effort to quash anti-ICE protests that have ravaged parts of the city on Tuesday. Images from L.A. show masked protesters blocking roads,

4:47 p.m. EDT The Trump administration asked the judge to reject Newsom’s request and allow it to respond by Wednesday, calling Newsom’s attempt to block the deployment of federal troops “legally meritless” and saying it would jeopardize the safety of Homeland Security personnel and interfere with the government’s ability to carry out operations.

Monday's protests were largely calmer than Sunday's clashes. California officials insist that the 4,000 National Guards troops and 700 active duty Marines en route to L.A. are an unnecessary abuse of power by Trump.

Donald Trump made no secret of his willingness to exert a maximalist approach to enforcing immigration laws and keeping order as he campaigned to return to the White House. The fulfillment of that

National Guard troops with riot shields pushed protesters into the streets, as tear gas was deployed and less-than-lethal rounds exploded in the roadway.