Malcolm-Jamal Warner died at 54, with his official cause of death now being revealed. The actor was on a family vacation in Costa Rica when he died from an accidental drowning, the Judicial Investigation Agency (OIJ) confirmed to PEOPLE.

Malcolm-Jamal Warner’s ex, Regina King, is the latest person to pay tribute to the late Cosby Show star Malcolm-Jamal Warner, who has died aged 54. Warner, who also starred in Malcolm & Eddie and The Resident, drowned Sunday while on a family vacation in Costa Rica. A representative for the actor confirmed his death to The Independent.

Actor and director Malcolm-Jamal Warner, best known for his role on "The Cosby Show," has died in an accidental drowning in Costa Rica, where he was vacationing with his family, officials there said. He was 54.