Videos taken Saturday afternoon at the California State Fair show the monorail appearing to short circuit and catch fire.
David Crafti captured video of sparks flying down below from the monorail.
Crafti said on Twitter that smoke started to appear from a store beneath the monorail and someone went to put it out.
The woman working there was able to climb out over the cash register.
Fire crews are on scene.
At this time it is not know if anyone was injured.
This is a developing story. Check back for updates.
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