About 766 and around 1,000 animals have reportedly been evacuated.
"I cried driving away, because you just don't know. You don't know if you're going to come home to anything," evacuated resident Cindy Wilson told a local CNN affiliate.
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Several Arizona Twitter users posted videos that showed smoke filling the sky.
The New York Times reports that, by Wednesday, the fire covered nearly 26 square miles and was being spread by wind gusts of up to 30 miles per hour. "I cannot stress enough how rapidly this fire is moving," fire management officer True Brown told CNN.
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