A demonstration at Los Angeles City Hall has shut down a portion of Spring Street in downtown on Saturday, police said. Protesters in opposition to the Trump administration’s deportations and stance on immigration have flocked to downtown LA for a second weekend in a row.

A scuffle broke out, and a 17-year-old wound up on the ground in Grand Park, bleeding from an apparent stab wound.

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