Angelina Jolie and kids interviewed by FBI

Intending to find out the exact series of incidents between Brad Pitt and his 15-year-old son Maddox, two FBI agents recently interviewed his estranged wife Angelina Jolie and her kids.

As per sources, the agents visited her at her Malibu home and had been there for more than three hours, reports TMZ.

Though it was not an official investigation, the investigation agency is finding facts to determine if there's evidence to warrant an investigation.

They requested the 'Salt' star and the kids to give an elaborate briefing of the entire instance, step-by-step.

As per sources, the 41-year-old star behaved in a very cooperative manner while dealing with the questions about their separation.

Jolie filed for divorce on September 19, citing irreconcilable differences and requested sole custody of the kids.

The former power couple has since reached a temporary custody agreement, which allows Pitt supervised visitation.