A relative state of calm in Los Angeles began to crumble early Sunday afternoon as demonstrators confronted federal authorities guarding a downtown detention facility where chaos erupted as National Guard soldiers deployed tear gas on an increasingly agitated crowd.

Top Portland and Multnomah County leaders, law enforcement officials and several community leaders stood together Friday in advance of large planned protests to decry the immigration policies of the federal administration and affirm the laws in place to protect immigrants.

The deployment of LAPD officers and L.A. County sheriff's deputies in response to protests over federal immigration actions has led to several viral incidents and raised questions about the role of local law enforcement in quelling the unrest.

Law enforcement has been pushing back Los Angeles protestors with 'less lethal' weapons. Now the National Guard is deployed and Marines are activated.

By Omar Younis, Brad Brooks, Phil Stewart and Idrees Ali LOS ANGELES (Reuters) -U.S. Marines deployed to Los Angeles made their first detention of a civilian on Friday, part of a rare use of military force to support domestic police and coming ahead of national protests over President Donald Trump's military parade in Washington.

The bill would enable community raids, targeted removals and widespread detention camps that sweep up U.S. citizens and the undocumented alike.

Around 200 Marines armed with rifles, riot control equipment, gas masks, roughly 20 hours of civil disturbance training and the ability to temporarily detain civilians arrived in the country's second-largest city after days of public anticipation.

Footage shows a helicopter depositing boxes in Paramount, a city in Los Angeles County where protests erupted on Friday.