The Marines and the National Guard personnel deployed amid the protests in to Los Angeles will operate under the same rules of force and will not be engaging crowds unless necessary, according to two U.S. officials.

The unprecedented mobilization of Marines in Los Angeles and threats from a Florida law enforcement official to kill protesters took place on the eve of mass demonstrations across the country against the attempt by Donald Trump to establish a military dictatorship in the US.

President Donald Trump is thanking an appeals court for freezing an order that he return control of National Guard troops to California.

The Trump administration has deployed the California National Guard in response to protests in Los Angeles that began Friday evening over immigration enforcement operations, which resulted in some clashes between demonstrators and authorities,

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.

About 500 of the National Guard troops deployed to the Los Angeles protests have been trained to accompany agents on immigration operations, the commander in charge said Wednesday.

Tensions flared in Los Angeles late Monday. On Tuesday, teams worked to scrub away, cover up or fade out protesters' graffiti.

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