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.

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

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.

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

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

Local police, the California National Guard, and US Marines are trying to manage the LA protests. But if you're watching them happen in real time, how do you tell which is which?