"Water Fire" burning near I5 on the Grapevine

July 24, 2013 12:00:00 AM PDT
Firefighters are working to put out a fire in Kern County along Interstate 5 through the Grapevine.

The wildfire forced the Highway Patrol to close parts of the interstate at one point on Tuesday. Crews are working to protect about 45 houses in the area, but so far there's been no mandatory evacuations.

The fire has burned 612 acres and is 75 percent contained. Investigators still do not know how it sparked.