Tia Mowry and her husband Cory Hardrict have decided to separate after 14 years of marriage.

The 44-year-old Sister, Sister star announced the couple’s separation in a moving Instagram post on Tuesday.

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“I have always been honest with my fans, and today is no different. I wanted to share that Cory and I have decided to go our separate ways,” she wrote next to a black-and-white image of the couple. “These decisions are never easy, and not without sadness. We will maintain a friendship as we co-parent our beautiful children.”

Mowry continued, “I am grateful for all the happy times we had together and want to thank my friends, family and fans for your love and support as we start this new chapter moving forward in our lives.”

According to paperwork acquired by PEOPLE, Mowry also filed for divorce from her spouse in Los Angeles on Tuesday.

The actress gave the cause for their breakup—irreconcilable differences—in the file, which was first made public by TMZ. She is asking for shared physical and legal custody of their children, Cairo, 4, and Cree, 11, even though the date of their separation was left unstated.

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According to the records, the pair, who got married in 2008, has a prenuptial agreement, and Mowry is requesting that the judge terminate spousal support.

She is famous for her role as Tia Landry in the television series Sister, Sister alongside her twin sister Tamera Mowry. Tia and her sister were separated at birth but later reunited. After a producer saw them on the set of Full House, where their brother Tahj Mowry frequently made guest appearances, they were cast in the series.

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After airing for two years on ABC, Sister, Sister was cancelled by the network and moved to The WB, where it continued to air for a further four years. During its run, they appeared in an episode of their brother Tahj Mowry’s sitcom Smart Guy, guest-starred on The Jamie Foxx Show and Sister, Sister crossover episode, and provided voiceovers for the Kids’ WB series Detention.