California man arrested after fortified underground bunker found with weapons cache

A California man was arrested after authorities said they discovered an underground fortified bunker with an "alarming cache of illegal firearms and ammunition" inside. 

Michael Kamfolt, 40, of Anderson, is now facing nearly a dozen weapons-related charges, including possession of an assault rifle and manufacturing of a ghost gun, after his arrest by the California Highway Patrol. He was taken into custody as part of an investigation into a suspected illegal marijuana cultivation operation on a property in Anderson, authorities said.