Authorities were responding Saturday to reports of a gas line explosion near the 5 Freeway in Castaic. LA County firefighters were called around 4:17 p.m. to the area of Ridge Route Road and Pine Crest Place. It’s unclear exactly where the explosion occurred. Officials had issued an evacuati on order that was later downgraded to a shelter-in-place order. A shelter-in-place order was issued for the following Castaic areas: West of I-5 South of North Red Oak Court North of Park Vista Drive East of Meadow Grass Drive, Victoria Road, and Mandolin Canyon Road The entire 5 Freeway was shut down indefinitely, according to the California Highway Patrol. Northbound traffic was being diverted to the CA-126. A witness in the area reported a sulfur smell and a loud noise that sounded like a jet engine. This story uses functionality that may not work in our app. Click here to open the story in your web browser. ...read more read less