A second, smaller fire near Acton, approximately 10 miles east of Santa Clarita, consumed about 8 acres. Homes are sparse in the hilly, rocky terrain. No damage was reported from this fire.
No evacuation orders were issued.
The far right lane of the northbound Interstate 5 Freeway remianed closed at around 6:00 p.m., as commuters slowly made it through the other open lanes.
Interstate 5 was backed up through the Newhall Pass into the San Fernando Valley, reaching all the way to the 118 Freeway.
Northbound 14 lanes were open and traffic was reportedly moving.
On the southbound 1, all lanes were open, but traffic was backed up to Valencia Blvd.
Fire engines, water-dropping helicopters and about 200 firefighters were at the Santa Clarita fire scene.
No injuries were reported
The cause of the fire was under investigation.
AP and CNS contributed to this report.