It happened after 2 p.m. Saturday at the Springwell Church's spring carnival.
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Witnesses say it took everyone by surprise.
"Big gush of air, the bounce house probably went up 20-30 feet."
First responders say the bounce house hit power lines, with several children falling 40 feet to the ground.
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The slide traveled off the church grounds and across a street.
There's no word from the hospital on the severity of the injuries, but the church's pastor asked for prayers for everyone involved.
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