The Cosby Show star Malcolm-Jamal Warner was reportedly swimming with his eight-year-old daughter when he drowned, Costa Rican authorities have said.

New details surrounding the death of 'Cosby Show' star Malcolm-Jamal Warner have emerged. The Red Cross in Costa Rica says first responders also treated a second swimmer in the drowning that led to the actor's death.

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.