California officials have continued to maintain the deployment of 2,000 National Guard members is "unnecessary".

Lauren Tomasi, a 9News correspondent, was reporting live when an officer behind her suddenly raised their firearm and fired a nonlethal round at close range.

As President Trump deployed National Guard troops, large groups of protesters in downtown Los Angeles decried immigration raids, shutting down a freeway and clashing with law enforcement.

The Los Angeles Police Department declared all of downtown LA an unlawful assembly area Sunday night. State of play: That declaration followed a faceoff between protesters and National Guard members Sunday, a day after President Trump signed a memorandum deploying 2,000 Guard troops to address the protests.

Dozens of arrests have been made after three days of protests, with the National Guard now patrolling the city.

As President Trump deployed National Guard troops, large groups of protesters in downtown Los Angeles decried immigration raids, shutting down a freeway and clashing with law enforcement.

Officials in Glendale, Calif., abruptly cancelled the city's contract with Homeland Security and Immigration and Customs and Enforcement under which the local police department holds immigration detainees on their behalf.

Police have declared all of downtown Los Angeles to be an unlawful assembly area and ordered protesters to go home, after Sunday saw a third day of violence hit demonstrations against President Donald Trump's immigration policy.

Several Waymo self-driving taxis were vandalized or set on fire during protests in Los Angeles, social media videos show.