Michael Jackson's mom reported 'missing' in ongoing family dispute NEW: "i haven't spoken with her in a week i want her home now," Paris tweets "Mother is fine but is resting up in AZ ," Jermaine Jackson tweets Los Angeles (CNN) -- A nephew of Katherine Jackson reported the Jackson family matriarch missing late Saturday night after her grandchildren were unable to get in touch with her for a week. It is the latest chapter in a messy dispute between several of Jackson's children and her advisers over her finances and legal affairs. Jackson's nephew, Trent, filed the report with the Los Angeles County Sheriff's Office. But one of her sons involved in the dispute said she was fine and resting in Arizona. "I want to reassure everyone (inc all sudden medical experts) that Mother is fine but is resting up in AZ on the orders of a doctor, not us," Jermaine Jackson tweeted. This is our mother and her health is paramount. We are not inventing or plotting anything. We are following doctor's advice. Period," he added. The missing persons report follows a letter made public Wednesday in which two daughters -- Rebbie and Janet -- and three sons -- Jermaine, Randy and Tito -- charge that Jackson, 82, was being mistreated by the executors of Michael Jackson's estate and mis-advised by her manager and lawyer. Michael Jackson remembered According to Jackson's lawyer, Sandra Ribera, Jackson left her Calabasas, California, home on July 15, to fly to Albuquerque, New Mexico, to attend a Jackson brothers concert two days later. Traveling with her was her oldest daughter, Rebbie. But when Paris, Michael Jackson's 14-year-old daughter, called her aunts Rebbie and Janet over the past several days, she was told each time she could not speak to her, Ribera said. "yes, my grandmother is missing . i haven't spoken with her in a week i want her home now," Paris tweeted Sunday morning. In another tweet, she gave out her bodyguard's phone number and asked people to call the authorities if they saw Jackson. Jackson has not called Michael Jackson's three children, who have lived with her since their father died three years ago, the lawyer said. Jackson "has never gone 24 hours without talking to her kids," she said. Jackson's manager Lowell Henry questioned Jermaine Jackson's claim that a doctor ordered her to leave her home and not communicate with her grandchildren. The sheriff's rhomicide-missing persons unit has been asked to investigate, Ribera said. Family, fans remember Michael Jackson