Brad Pitt Investigated for alleged child abuse

Brad Pitt is under investigation for child abuse after after he allegedly got "verbally abusive" and "physical" with one of his children with Angelina Jolie on the couple's private plane while their other kids were present, WHO confirms.

The Los Angeles Police Department and L.A. County Department of Children and Family Services are both investigating after someone anonymously reported the incident last Wednesday on the tarmac, a source tells WHO.

Pitt is accused of getting verbally abusive with one couple's kids, as well as getting "physical," a source says. Jolie was present at the time, along with at least some of their other children.

The report allegedly indicates he had been drinking at the time of the incident.

Another source says that Pitt did not return to the L.A. family home with Jolie and the children after the incident. That wasn't unusual, says the source – Pitt would often spend the night at a hotel after arguments with Jolie.

TMZ first reported news of the child services investigation.

A source close to Pitt tells WHO that he is not taking the investigation lightly.

"He takes the matter very seriously and says he did not commit any abuse of his children," the source says. "It's unfortunate that people involved are continuing to present him in the worst possible light."

Jolie, 41, filed for divorce and requested sole physical custody of the couple's six children – Maddox, 15, Pax, 12, Zahara, 11, Shiloh, 10, and twins Knox and Vivienne, 8 . In documents filed in court on Monday, Jolie cited irreconcilable differences in ending their marriage of two years.