Mel Gibson’s wife, Robyn, has filed for divorce after 28 years of marriage.

Robyn filed the papers on Monday, citing “irreconcilable differences” as the reason for the split.

“Throughout our marriage and separation we have always strived to maintain the privacy and integrity of our family and will continue to do so,” a statement from the actor’s rep reads.

A source tells Entertainment Tonight the couple has been separated for nearly three years.

Mel and Robyn have 7 children together: Hannah, twins Edward and Christian, William, Louis, Milo, and Thomas. The eldest, Hannah, was born in 1980. Tom, born in 1999, is the only minor. Robyn is reportedly seeking joint physical and legal custody of the boy, who turns 10 on Tuesday.

She is also requesting the court grant her spousal support from the actor. And it sounds very likely that she’ll get it. Sources tell TMZ there is no prenuptial agreement. The pair wed before Mel Gibson amassed a fortune estimated at $900 million in 2006. Under the State of California’s infamous community property laws, all earnings earned during the marriage are to be divided 50/50.

Mel and Robyn were married in 1980 after meeting on vacation in Australia in 1977.