Kristoff St. John, best known for his role as Neil Winters on CBS’ long-running soap The Young and the Restless, has died. He was 52. The cause of death is not immediately known.

The Daytime Emmy Awards shared news of his passing on its Twitter account.

“It is with unbelievable sadness that we say goodbye to our friend, #DaytimeEmmys winner @kristoffstjohn1. @YandR_CBS Rip.”

St. John won two Daytime Emmy awards out of nine nominations, along with ten NAACP Image Awards.

His attorney, Mark Geragos, paid tribute to St. John on Twitter. “Few men had the unique strength, courage & sensitivity that @kristoffstjohn1 lived every single minute of every day,” Geragos wrote. “He impacted everyone he met and millions who he inspired and in turn admired him. On behalf of @MiaStJohnBoxer & @TheStJohnFamily thank you for all of your love.”

St. John began his career as a child actor, portraying a young Alex Haley...