Union leaders and immigrant advocates rallied in San Francisco, California on Monday, denouncing federal immigration raids.

Protests broke out last week in Los Angeles in response to reports of immigration raids, and have escalated with thousands taking to the streets of the nation's second-largest city after Trump took the extraordinary move of deploying the National Guard.

Over the weekend, demonstrators blocked a major freeway and set self-driving cars on fire as law enforcement used tear gas and rubber bullets to control the crowd.