Fire crews responded with water-dropping helicopters and air tankers Tuesday afternoon in the attack on a 55-acre fire burning near the Six Flags Magic Mountain theme park in the Valencia area.
Aerial and ground units responded to the location near Magic Mountain Parkway and The Old Road (map) at mid-day. The fire off the 5 Freeway was reported at about 11:30 a.m.
Containment was at 80 percent at 2:25 p.m.
Two air tankers were assigned to the brush fire, smoke from which could be see from Six Flags Magic Mountain theme park. The park is "unaffected" by the fire, according to a statement from Six Flags Magic Mountain.
No structures are threatened and authorities have not ordered evacuations. The nearby 5 Freeway remains open.
The fire comes amid hot, dry and windy conditions in Southern California. A fire north of Santa Barbara burned 1,800 acres by mid-day Tuesday and forced campground evacuations during Memorial Day.
Refresh this page for updates.