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 in Los Angeles County Superior Court, citing irreconcilable differences and seeking joint custody of their three children, who range from 5 to 11.

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

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