Jennifer Garner and Ben Affleck have filed divorce petitions, the first step in formally ending their marriage more than a year after they publicly declared their relationship was over.

The actors both filed divorce petitions Thursday in Los Angeles County Superior Court, citing irreconcilable differences and seeking joint custody of their three children, who range in age from 5 to 11.

The filings were made without attorneys and are virtually identical. Neither lists a date of separation.

The couple announced they were separating in June 2015 after 10 years of marriage.

“We go forward with love and friendship for one another and a commitment to co-parenting our children,” Garner and Affleck said at the time. “This will be our only comment on this private, family matter.”

Affleck, a two-time Oscar winner, announced last month that he had recently completed treatment for alcohol addiction.

His breakup from Garner returned him to the tabloids, where he had been a mainstay years earlier because of his relationship with singer Jennifer Lopez. He lamented the renewed focus on his personal life after years of attention on his role as a parent and the critical success of the Oscar-winning film “Argo,” which he produced and directed.

“This business tends to exaggerate highs and lows,” Affleck told The Associated Press.

— Associated Press