Relations between the Jackson family and executors John Branca and John McClain have been strained for most of the three years since Michael Jackson's sudden death. But now, in a letter signed by Janet, Jermaine, Tito, Randy and Rebbie, the siblings accuse the executors who control Michael Jackson's estate of fraud and of abusing their mother, Katherine, and writing "This has to stop now: No more!!" CNN reports .
The letter also suggested that their mother, Katherine Jackson, suffered a "mini-stroke" recently, which her lawyer quickly disputed.
The controversy even led Paris Jackson, the late pop star's 14-year-old daughter, to use her Twitter account to weigh in.
"i am going to clarify right now that what has been said about my grandmother is a rumor and nothing has happened, she is completely fine," Paris tweeted.
The letter mostly repeats allegations made by family members, but it also threatens new legal action against Branca, an entertainment lawyer, and McClain, a music executive, who worked with Jackson at several points in his career.
"We know there is most certainly a conspiracy surrounding our brother's death and now coarse manipulation and fear are being used to cover it up," they wrote. "Your heartless pursuit of wealth, fame and power is at the expense of our family, whose deepest desire is to give to the world a gift of hope, love and unity through our music."
Read more at CNN.