Protesters gathered in the morning on LA’s historic Olvera Street, which dates to Spanish and Mexican rule, before marching to City Hall.

A protest in downtown L.A. protest against the immigration policies of President Trump moved onto the 101 Freeway.

A massive crowd of protesters blocked traffic on a downtown Los Angeles freeway, causing major delays, in response to President Donald Trump's illegal immigration crackdown.

Draped in Mexican and Salvadoran and flags, roughly 1,000 demonstrators gathered near City Hall shortly before noon, blocking traffic at Spring and Temple streets

The protest began on LA's historic Olvera Street - which dates back to Spanish and Mexican rule - in the morning ahead of a march to City Hall

Thousands of raucous protesters rallied against President Trump’s renewed effort to deport illegal migrants and ground traffic to a standstill on a Los Angeles freeway Sunday afternoon. The throngs of demonstrators waving flags of Mexico and other countries south of the border shut down a portion of 101 Freeway for hours – though no arrests were reported into the evening.

A massive rally protesting President Donald Trump’s mass deportations and immigration policies blocked traffic on the Hollywood (101) Freeway in downtown Los Angeles Sunday. The protesters gathered Sunday morning on Olvera Street for what the Los Angeles Police Department called a non-permitted demonstration.