President Trump ordered at least 2,000 National Guard troops on Saturday to be deployed in Los Angeles County to help quell two days of protests against recent raids on workplaces looking for undocumented immigrants.

Any demonstration that got in the way of immigration officials would be considered a “form of rebellion,” Mr. Trump said. His order was an extraordinary escalation that puts Los Angeles squarely at the center of tensions over his administration’s immigration crackdown. Californian Gov. Gavin Newsom said it was “purposefully inflammatory and will only escalate tensions.”

The protests on Saturday in downtown Los Angeles and the city of Paramount, about 16 miles south of Los Angeles, were the second consecutive day of demonstrations. In some cases, law enforcement officers used rubber bullets and flash bang grenades against the protesters.

As of early Sunday, there were no signs of the National Guard troops on streets in the Los Angeles area. The protests had died down but organizers have called for more demonstrations later on Sunday.

Here’s what to know:

How have the protests developed?

Demonstrations broke out in the Los Angeles area on Friday and continued on Saturday.

The raids appear to be part of a new phase of the Trump administration’s immigration crackdown, with officials saying they will increasingly focus on workplaces. U.S. Immigration and Customs Enforcement officers arrested 121 immigrants across Los Angeles on Friday, according to a Department of Homeland Security official who spoke on the condition of anonymity.

The police had said earlier in the day that demonstrations in the city were peaceful. Some of the protests in other areas on Saturday were in Paramount, a city about 16 miles south of downtown Los Angeles that has a large Latino population, were more confrontational.