The L.A. Sheriff's department responded to a family disturbance call at Katherine's home on Monday afternoon after Janet, Randy and Jermaine Jackson reportedly tried to take Michael Jackson's children Prince, Paris and Blanket from the compound.
"Deputies determined that a physical altercation had occurred of misdemeanor battery," said L.A. Sheriff spokesman Steve Whitmore. "It involved members of the Jackson family. A report was taken. No arrests were made, and the investigation is ongoing."
Whitmore confirmed that the altercation involved "two people," although he did not specify which two. He did add, "If we thought an arrest should have been made, we would have made it."
Still, Katherine's travels and the recent skirmish seem to point to mounting tensions in the Jackson family, as five of Michael's siblings are claiming his will was a fake; that Katherine, 82, was being manipulated; and the executors of Michael's estate should step down. (Michael's estate is currently valued at more than $1 billion.)
"They will not stand down, because the siblings who were left out of Michael's will want them to," said Zia Modabber, attorney of the Jackson estate, according to an ABC News report.
Katherine's lawyer, Sandra L. Ribera, issued a statement Tuesday, saying, "Jackson family members ambushed Katherine Jackson's home after their vehicle tore through security gates on the tails of the SUV containing Michael Jackson's children."
John McClain and John Branca, the executors of Michael Jackson's estate, are reportedly going to seek guardianship of Michael's three children, reports TMZ. A lawyer for the executors has denied that claim, though.
'Unnecessary Anxiety'Last week's missing person's report, filed by Katherine's nephew Trent Jackson, was later blasted by Jermaine, who said in a statement: "It dismays me that such an alarmist "missing person" report has caused unnecessary anxiety among Michael's children who will understandably react to what they misunderstand, hear or are told."
A statement released by Katherine's children Monday claimed that the missing person's report was "created by the very person and persons we are trying to protect our mother from." (Katherine, who is the legal guardian of Michael's three children, was said to be with her daughter Rebbie in Arizona during the time she was "reported" missing.)
As a source told PEOPLE: "They don't feel Trent is holding the kids there against their will. They just want Trent away from Katherine. But when they went there to try and get the kids, it was a fight."
Paris's ReactionParis Jackson, 14, took to Twitter to express her concern over her grandmother's whereabouts. "Yes, my grandmother is missing. I haven't spoken with her in a week I want her home now," she wrote, later posting: "8 days and counting. Something is really off, this isn’t like her at all... I wanna talk directly to my grandmother!"
The next day, she sent the message: "9 days and counting… so help me god i will make whoever did this pay"
According to a source, Paris is struggling with the family drama. "She is going through that with them. She is strong-willed. They won't tell her all of the details. That is why she is tweeting like this," the source said.
With reporting by CHAMP CLARK, JOHNNY DODD, JESSICA HERNDON and KEN LEE