Officials believe Katherine Jackson safe

Authorities said Sunday they believe Katherine Jackson, 82, the mother of Michael Jackson and the guardian of his three minor children, is safe in Arizona with family members after she was reported missing, The Associated Press reports.

A family member reported her missing Saturday night amid a dispute over the estate of her superstar son.

A person familiar with the Jackson family matriarch's whereabouts said she is with her daughter Rebbie in Arizona and following a doctor's orders to rest. The person spoke on condition of anonymity.

Sheriff's officials said they were still trying to establish contact with Katherine Jackson.

Granddaughter Paris Jackson issued a plea on Twitter early Sunday. She and brothers Prince Michael and Blanket Jackson have been under their grandmother's care since their father's death in 2009. "I haven't spoken with her in a week I want her home now," Paris tweeted.

Katherine Jackson also hadn't been in contact with her attorneys. "First of all, let's hope that this is all just a big misunderstanding and a totally benign situation," her attorney Perry Sanders Jr. said Sunday. "Assuming that she did actually leave on doctor's orders, no matter which doctor, it has certainly created an absolutely irregular situation whereby she has been out of contact with her grandchildren."

The mystery was compounded by a recent visit to her California home by her son's former physician, Dr. Allan Metzger, who examined her July 14, said Katherine Jackson's attorney Sandy Ribera. Her regular doctor wasn't aware of Metzger's house call until concerns about her were raised, Ribera said.

A phone message left for Metzger was not immediately returned Sunday.

An undated letter signed by Janet, Randy, Tito, Rebbie and Jermaine Jackson alleged that their brother's will was a fake and that their mother was being manipulated by the executors and had suffered a mini-stroke.

The estate has denied the accusations.

On Friday, Jermaine Jackson tweeted that his mother was resting on the orders of a doctor in Arizona. "This is our mother and her health is paramount. We are not inventing or plotting anything," he posted. "We are following doctor's advice. Period."