Brad Pitt is fighting for a joint physical custody of his kids with estranged wife Angelina Jolie.

In September, the actress filed for divorce from the actor and said that she is seeking sole custody of their children. In the divorce documents, it was revealed that Jolie is only granting Pitt visitation rights to spend time with their kids. Previously, Jolie claimed that Pitt was involved in an altercation with their son, Maddox.

According to E! News, the incident led to an anonymous call being placed with the Los Angeles County Department of Children and Family Services (DCFS). However, a source close to Pitt said that there was no truth to the reports. In fact, Pitt was distraught over claims that he physically and verbally abused his son on Sept. 14.

Following the incident, two FBI agents visited Jolie and Pitt’s home in Malibu to conduct an investigation. A spokesperson for the FBI confirmed that they are still gathering information about the incident. “The FBI is continuing to gather facts and will evaluate whether an investigation at the federal level will be pursued,” the statement read.

Meanwhile, Pitt has reunited with his children twice since Jolie’s divorce filing. However, he has only had the chance to see Maddox once. Upon seeing his father, the 15-year-old allegedly uttered a hurtful statement to spite the actor. “You’re not my father!” a source revealed. However, this hasn’t been confirmed or denied by both Jolie and Pitt.

During their reunion, Pitt broke down in tears in front of his children. A source told InTouch Weekly that everyone was very emotional that day. “Once the kids came in, Brad Pitt lit up. He had tears in his eyes and tried to hold it together because he didn’t want them to be upset because he was crying.” The reunion took place in the presence of the DCFS.

Brad Pitt Brad Pitt wants to share custody of their children with estranged wife, Angelina Jolie. Pictured: Brad Pitt at the premiere of "The Big Short" at Ziegfeld Theatre in New York City on Nov. 23, 2015. Photo: Dimitrios Kambouris/Getty Images