Lukens Fire burning in Yosemite National Park Wilderness

Lightning sparked the Lukens Fire, which has grown to 450 acres. The fire is located southwest of Lukens Lake near White Wolf.

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.

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.

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