Katherine Jackson Katherine Jackson

One day after Katherine Jackson was reported missing by her nephew, and later located by police in Arizona, authorities were called to the Jackson family house to investigate an assault claim, TMZ reports.

Lost Hills deputies went to the Calabasas home after someone inside the home accused someone else present of a physical assault. A report was taken, but no arrests were made.

Katherine Jackson reported missing, located

According to TMZ, the allegation is somehow connected to an ongoing investigation police are conducting regarding Katherine Jackson. Back in April, a business associate of the Jacksons claimed that Katherine was being emotionally and financially mistreated by family members. Although she allegedly denied this, police have continued to investigate whether there has been financial abuse.

Katherine, 82, was reported missing by her nephew after she hadn't contacted her grandchildren in a week. Soon after questions arose about her whereabouts, she told police she was "fine" and with a family member. However, her grandchildren, including Paris Jackson, are still worried. "8 days and counting. Something is really off, this isn't like her at all," Paris, 14, tweeted Monday. "I wanna talk directly to my grandmother!!"

Paris and her two brothers have lived with Katherine ever since the death of their father, King of Pop Michael, three years ago.