Actor Brad Pitt arrives at the premiere of "Salt" in Los Angeles, on Monday, July 19, 2010. (AP Photo/Matt Sayles)
By Chloe Melas CNN
(CNN) -- Brad Pitt spoke with Los Angeles authorities recently about an incident involving one of his children with Angelina Jolie, who filed for divorce this week.
A source with knowledge of the situation said Thursday that: "[Brad] is taking this very seriously and he's cooperated. He has always worked hard to be a good father and wants to do whatever is best for his family."
Los Angeles authorities did not immediately comment.
People magazine reported that the incident took place on September 14 on the couple's private plane. Jolie lists September 15 as the date of their separation.
A representative for Pitt referred CNN to the original statement that was released when news of the split was made public.
"I am very saddened by this, but what matters most now is the wellbeing of our kids," Pitt said. "I kindly ask the press to give them the space they deserve during this challenging time."
Jolie filed for divorce Monday and cited irreconcilable differences. She is seeking physical custody of their six children.
Jolie's attorney, Robert Offer, released the following statement to CNN at the time: "This decision was made for the health of the family. She will not be commenting at this time, and asks that the family be given their privacy during this difficult time."