Alan Ritchson and his wife, Catherine Ritchson, are ending their marriage after two decades together.

The couple announced their separation Saturday in a joint message on social media, saying that their children “will always be at the center of our world.”

“After twenty years together, Cat and I have decided to end our marriage and continue alongside one another in a different way,” reads the Instagram post. “We grew up together. We built a life and a family together. And we are raising three incredible boys who will always be the center of our world.”

The Reacher star and Catherine share three sons.

“Nothing can diminish what these years have meant to us — or the love and respect we will always share,” the statement continued. “The best gift we can give one another — and our boys — right now is friendship, grace and a commitment to becoming the strongest co-parents we can be.”