Michael Jackson's mother is MIA, according to multiple media sources. Katherine Jackson was reported missing by nephew Trent Jackson after a week of nobody hearing from her, including grandchildren Paris, Prince and Blanket. Jackson has guardianship over the three children of the late pop singer. Police confirmed that a missing persons report was filed regarding the 82-year-old Jackson matriarch. Lt. Josh Thai of the Los Angeles County Sheriff's Department tells Radaronline.com, "I can confirm that a missing person's report was filed this evening by Mrs. Katherine Jackson's nephew, Trent Jackson, after he was unable to see her or reach her for a week. The report will be referred to the Homicide/Missing Persons Unit, and they will be handling the investigation." Insiders tell Radaronline.com that Paris, Prince and Blanket are currently being cared for by a nanny and that Katherine has never gone more than 24 hours without speaking with the children prior to this. Sunday morning Paris confirmed that her grandmother's whereabouts are unknown: "yes, my grandmother is missing i haven't spoken with her in a week i want her home now. if anybody sees my grandmother, please call the authorities or this number - (818)-876-0186 it's the security number .. thank you so much," she tweeted.  However, it wasn't long before Katherine's sons Jermaine and Randy came out saying that Katherine was fine and under a doctor's care. Jermaine issued the following statement about his mother via Twitter, ""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. This is our mother and her health is paramount. We are not inventing or plotting anything. We are following doctor's advice. Period." The timing of Katherine's disappearance is suspect because her offspring have recently been battling over control of the King of Pop's estate… yet again. Michael's siblings want the executors of the estate, John Branca and John McClain, out. They maintain that Katherine is "so stressed" that she suffered a stroke. Katherine's rep denies the news. After her uncle's statement, Paris publicly expressed her concern for her grandmother, adding, "the same doctor that testified on behalf of dr murray saying my father was a drug addict (a lie) is caring for my grandmother... just saying."