Blaze contained after burning through the night

 A wind-driven fire burned 2,500 acres of grassland in the Kern National Wildlife Refuge in northern Kern County.
The fire broke out about 3:30 p.m. Tuesday afternoon and spread rapidly through the dry grass.

Kern County firefighters worked throughout the night to halt the spread of the fire, using engines, all-terrain patrols, hand crews and dozers.
Four air tankers dropped retardant on the fire into the evening to help protect structures and slow the spread of the fire.

At 8 a.m. Wednesday the KCFD said the fire was 100 percent contained.
The cause is still under investigation.