CASTIAC, Calif. (AP) — A wildfire near Castaic Saturday has led to the closure of a part of a major freeway in Southern California, officials told local media. KTLA reported that the Route Fire is threatening structures, according to the Los Angeles County Sheriff’s Department Santa Clarita Valley station. The National Weather Service said there were more than 1,100 cloud-to-ground lightning strikes in California between Thursday evening and Friday morning. Fire officials said lightning strikes ignited at least 17 fires. The second-largest fire in California history has burned 1,490 square miles (3,859 square kilometers) of land and more than 1,300 homes and other buildings.