Brad Pitt has accused Angelina Jolie of violating their six children’s privacy, in a new sign that Hollywood’s nastiest divorce battle is going nuclear.

Pitt has accused Jolie and her legal team of releasing confidential information about their children in a document known as the “October Stipulation,” which sought to lay down visitation rights for Pitt.

Meanwhile, it has also emerged that Jolie is requiring Pitt to be tested for drugs and alcohol four times a month during their messy custody battle over their kids, 8 year-old twins Vivienne and Knox, Shiloh, 10, Zahara, 11, Pax, 13, and Maddox, 15, following their split in September.

The new revelations have come to light, ironically enough, as a result of Pitt filing court documents in the Superior Court of California requesting that all records regarding custody issues be kept under seal to protect the privacy of their kids.

Pitt’s filing was in response to a submission made by Jolie in October, referred to as “The October Stipulation.” Pitt argues that Jolie filed the stipulation despite the fact that Jolie’s lawyers knew that by doing so, various details of the children’s health records, including the names of their therapists, would become public, according to documents seen by a reporter for Dailymail.com.

Shortly after Jolie, 41, filed for divorce, she and Pitt, 52, reached a temporary custody agreement.

Weeks later, the FBI closed its investigation into Pitt regarding an alleged incident between him and Maddox aboard a private plane on Sept. 15.

However Pitt’s new court documents say that Jolie has “compromised the children’s privacy by disregarding a confidentiality agreement that was expressly designed to protect the minor children.”

In the documents, Pitt’s lawyer, Lance S. Spiegel, writes: “The minor children should be protected from embarrassment and stigma resulting from public access to information concerning their emotional status and their relationships with their parents.”

In his own statement, Pitt writes: “[Jolie] and I have been unable to agree on a custody schedule and I intend to file a Request for Orders to establish a schedule unless an agreement is reached.”

He adds: “I am extremely concerned that if court records regarding custody are not sealed, information contained therein will cause irreparable damage to our children’s privacy rights.”

In a further bid to stop documents being made public, a psychologist provided a witness statement for the actor, saying all documents should be kept sealed for the sake of the children.

The psychologist said research showed children were harmed when exposed to their parents’ conflict during divorce proceedings.

Pitt managed to get an emergency hearing in the case—but his request was denied by the judge, meaning the pair will next be in court in January.