A farmworker whose union said he suffered injuries in a U.S. Immigration and Customs Enforcement raid is alive and in critical condition, a California hospital said Friday evening.

Federal law enforcement officials fired tear gas and rubber bullets at protesters Thursday during a large immigration raid in Ventura County at one of California’s largest and most notable cannabis farms, according to a local mayor at the scene.

ICE agents raided cannabis nurseries in Camarillo, California, and Carpinteria, California, on Thursday. Both cannabis facilities are owned by Glass House Brands Inc., which bills itself as one of the largest cannabis flower brands in the world.