A snorkeler was pronounced dead after she was found unresponsive at Hanauma Bay.

She has been identified as Chae-Young Lee, 49, of Plainview, N.Y., according to the Honolulu Medical Examiner’s Office. An autopsy will be conducted today to determine the exact cause of death.

Emergency Medical Services responded to an unresponsive snorkeler at about 2:30 p.m. Monday. Lifeguards performed cardiopulmonary resuscitation on Lee until paramedics arrived.

EMS treated Lee and transported her in critical condition to a hospital where she died.

Earlier Monday, another snorkeler was found unresponsive in waters off of Makua Beach in Waianae.

Spokeswoman Shayne Enright said a boat picked up the snorkeler, a 49-year-old man, at about 8:30 a.m.

Emergency Medical Services transported him in critical condition to an area hospital where he died.

The snorkeler’s name has yet to be released by the Medical Examiner’s Office.

Police said there were no signs of foul play in both cases.