As demonstrations in the “Day Without Immigrants” protests in downtown Los Angeles continued into the evening, tensions between protesters and police appeared to surge as authorities issued an unlawful assembly and dispersal order Monday evening.

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

Some type of scuffle broke out, and one person — likely a student — wound up on the ground, bleeding from an apparent stab wound, according to video from the scene.