Former US President Donald Trump on September 21 sued his niece and The New York Times over a 2018 story about his family’s wealth and tax practices that was partly based on confidential documents she provided to the newspaper’s reporters, Report informs referring to the Associated Press.

Trump’s lawsuit, filed in state court in New York, accuses Mary Trump of breaching a settlement agreement by disclosing tax records she received in a dispute over family patriarch Fred Trump’s estate.

Trump is seeking $100 million in damages.

Trump filed his lawsuit almost a year to the day after Mary Trump sued him over allegations that he and two of his siblings cheated her out of millions of dollars over several decades while squeezing her out of the family business.

Mary Trump, 56, is the daughter of Donald Trump’s brother, Fred Trump Jr., who died in 1981 at age 42. Mary Trump was 16 at the time.

According to the lawsuit, Mary Trump came into possession of more than 40,000 pages of “highly sensitive, proprietary, private and confidential documents” through a legal case involving Fred Trump’s will.