The Costa Rican beach where Malcolm-Jamal Warner tragically drowned was clearly marked with bold warning signs about rip currents and high drowning risks ... TMZ has learned.

Officials are setting the record straight about Malcolm-Jamal Warner’s death. Despite earlier reports, Costa Rica’s Judicial Investigation Agency (OIJ) told People on Friday that the “Cosby Show” alum’s daughter was actually not in the water at the time of his drowning.

Malcolm-Jamal Warner was beloved to television audiences for decades, starting as a teen on The Cosby Show, where he played Bill Cosby's only son, Theo Huxtable.Thus, his death has hit a lot of people hard.

He was declared dead at the scene. The body was sent to the Judicial Morgue in San Joaquín de Flores, Heredia for an autopsy. 10:53 AM PT -- Warner died of asphyxia after he was caught by a high current in the ocean,