Malcolm-Jamal Warner, an actor and artist who rose to fame as a child as Theodore Huxtable on “The Cosby Show,” has died, according to a source close to the actor.

He was 54.

Warner died in a drowning accident in Costa Rica, where he was on vacation with his family, the source said.

Warner was swimming at Playa Grande in the town of Cocles in the province of Limón on the Caribbean coast of Costa Rica around 2:30 p.m. local time Sunday, when a current pulled him deeper into the ocean, according to the Associated Press.

Costa Rica’s Judicial Investigation Police told CNN on Monday people who were on the beach tried to help Warner, but he was declared dead by the Red Cross.