A 36-year-old man was hospitalized in critical condition Friday morning after he was apparently free diving at Kaimana Beach in Waikiki, according to Emergency Medical Services officials.
The man later died. Police have classified the apparent drowning as an unattended death.
Paramedics were called to the scene at around 5 a.m.
A friend of the man yelled for help when the diver ran into trouble. People from a nearby hotel helped to pull the man to shore.
CPR was performed on the man before paramedics arrived.