Mel Gibson reportedly was caught on tape using a string of racist and derogatory remarks in a profanity-laced argument with ex-girlfriend Oksana Grigorieva.

Internet reports state that the audiotapes were made by Grigorieva. She and the actor are currently in the midst of a custody battle over their 7-month-old daughter, Lucia.

Celebrity news website Radaronline.com Thursday published excerpts of an audiotape of Gibson telling Oksana Grigorieva, whom he is battling in court, that the way she is dressed made her look like a “pig in heat.”

“If you get get raped by a pack of n—ers, it will be your fault,” Radaronline reported Gibson as shouting at Grigorieva during an argument she taped, apparently using an expression that is deeply insulting to African Americans.

According to TMZ.com, the tapes have been submitted to the judge in the couple’s custody battle and are under seal. The website also reports that Grigorieva kept a number of “incendiary emails” that Gibson sent to her.

Grigorieva’s attorneys declined to discuss the reports to the Press on Thursday, while Gibson’s rep said, “I have no comment on, and furthermore no knowledge of, the credibility or authenticity of any alleged audio tapes.”

In 2006, Gibson unleashed a now-infamous anti-Semitic tirade to police following a drunk driving arrest. He later apologized for his “despicable” comments and “out of control” behavior.

Gibson, 54, and the Russian-born singer were reported in April to have split up, five months after the birth of their daughter Lucia.

The Oscar-winning actor and director of “Braveheart” and “The Passion of the Christ” had gone public with their romance shortly after he filed for divorce in April 2009 from his wife Robyn after nearly 30 years of marriage.