Outside Hollywood High School, a group of teachers gathered to welcome students, holding signs reading "Immigrants are Welcome Here," and "Hollywood Stands With Immigrants."

A group of teachers, in collaboration with the community organization Union del Barrio, is launching "teacher patrols" to protect students from potential ICE raids.

The Los Angeles Unified School District, the nation’s second largest, begins a new school year Thursday as it welcomes back more than 500,000 students. KTLA reporter Carlos Herrera spent part of his morning talking with the people who many students will start their day with,