The Los Angeles Police Department said a victim was stabbed and transported to a hospital, but did not release any further details about the 1:30 p.m. incident.

What started as a peaceful protest turned bloody in Los Angeles, as a group of students walked out of school for the fourth day to protest immigration policies set forth by President Donald Trump. Images taken by KTLA’s Sky 5 helicopter over downtown L.

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