FRESNO, Calif. (KFSN) -- A fire sparked by lightning inside Yosemite National Park is now 50% contained.
New video from visitors show the flames burning on Friday southwest of Lukens Lake near White Wolf.
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Those flames burned 450 acres on Thursday night but firefighters have stopped the blaze's progress.
The National Park Service reports 19 fires ignited from lightning during thunderstorms in late June.