Several sources in Kentwood, Louisiana tell TMZ, Maddie was on a Polaris off road vehicle when it flipped over. TMZ is told she was under water for several minutes and unconscious.
TMZ sources say she was airlifted to a nearby hospital.
TMZ is told Jamie Lynn was not with her daughter when the accident occurred. And, they're also told, Maddie was involved in a hunting expedition at the time of the accident.
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