LOS ANGELES A relative of Katherine Jackson said the mother of the late pop star Michael Jackson was missing after her grandchildren had been unable to get in touch with her for a week, CNN television reported early Sunday. The network said Jackson's nephew, Trent, filed a missing person report with the Los Angeles County Sheriff's Office. But one of Michael Jackson's brothers immediately denied the allegation, saying Katherine Jackson was fine and resting in Arizona."I want to reassure everyone ... that Mother is fine but is resting up in AZ on the orders of a doctor, not us," Jermaine Jackson tweeted.The family is involved in a dispute over Katherine Jackson's finances and legal affairs, CNN said.This news was published in The Nation newspaper. Read complete newspaper of 23-Jul-2012 here.