National Guard deployed in Santa Ana

National Guard troops arrived to aid police lines in Santa Ana as hundreds of protesters took to the streets during demonstrations opposing immigration raids by the Trump administration.

Protests also sprang up in at least nine other U.S. cities, including New York, Philadelphia and San Francisco, according to local news outlets.

Though military forces have been deployed domestically for major disasters such as Hurricane Katrina and the attacks of September 11, 2001, it is extremely rare for troops to be used domestically during civil disturbances.

California governor Gavin Newsom contends it is his charge as governor to call in the National Guard, labeling U.S. President Donald Trump's action as "an unmistakable step toward authoritarianism."

California also sued the Trump administration to block deployment of the National Guard and the Marines, arguing that it violates federal law and state sovereignty.

Meanwhile 9News said in a statement that the reporter and camera operator were safe and able to continue working

9News reporter, Lauren Tomasi, had just delivered a piece to camera for viewers in Australia when an armed police officer in riot gear behind her shot her with a rubber bullet.

“Lauren and her camera operator are safe and will continue their essential work covering these events,” Nine said in a statement.

Protesters have been demonstrating for three days in response to President Donald Trump’s immigration enforcement.

In response to the ongoing demonstrations, hundreds of U.S. Marines were deployed to assist National Guard troops protecting federal facilities.

Law enforcement maintained a significant presence in the downtown area, often blocking protesters from marching along certain streets or accessing freeway on-ramps. The Los Angeles Police Department declared a tactical alert, allowing officers to remain on duty beyond their normal shifts to manage the growing protests.