Demonstrators gathered outside Los Angeles City Hall Wednesday as protests against the Trump administration's crackdown on immigration continued in LA for a fourth day.

Officials detained about 200 demonstrators after dispersal orders Monday night, but issued warnings and released them.

Protests over President Trump’s stringent immigration policies erupted across the country over the weekend, with the city of Los Angeles grinding to a stand still on Sunday as thousands gathered downtown.

The Los Angeles Police Department said a teenage protester was stabbed and transported to a hospital in critical condition.

Protesters have gathered in Southern California for the second straight day as a nationwide “Day Without Immigrants” movement got underway Monday. Dozens of people waving mostly Mexican flags and some American flags while carrying pro-immigration signs gathered at City Hall in downtown Los Angeles before starting their march.

Following Wednesday’s protest, students in Los Angeles walked out of class for the fourth day in row in support of immigrants and against deportations.

Groups of students from Marshall High School, James A. Garfield High School and Bravo Medical Magnet School walked off campus in student-led demonstrations.

A scuffle broke out, and a teenager wound up on the ground in Grand Park, bleeding from an apparent stab wound.