ORLANDO, Fla. -- An Alabama family says an escaped snake at Disney's Animal Kingdom dropped from a tree and bit a boy, which led to the death of the boy's grandmother.

The family's attorney, Matt Morgan, said Thursday that the family plans to sue Disney World.

He says the grandmother saw the snake bite the boy, went into cardiac arrest and died a short time later.

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Disney spokeswoman Jacquee Wahler says the allegations mischaracterize what happened.

Disney confirmed to CBS affiliate WKMG that the boy was bitten by a snake at the park but said it was a wild, nonvenoumous snake and not part of the park's collection.

Disney also says after the boy was treated with a Band-Aid, the family returned to the park.