KOTA KINABALU - A 64-year-old Chinese tourist believed to be suffering from high blood pressure died while snorkelling at the Mamutik Island, near here.
Ke Aihua's husband, Lu Jinxiang, 63, found her face down and motionless at about noon on Tuesday, when she was out snorkelling near the beach.
Sabah Police Commissioner Datuk Hamza Taib said Lu had called out to his wife at about 11.50am, and went to her aid when she did not respond.
"He found her face down and motionless," he said, adding that Ke had worn a life jacket.
Lu then sought help from the lifeguards nearby and tried CPR on her but to no avail.
Hamza said no injuries or bruises were found on Ke's body, but doctors suspected she had high blood pressure.
He said the cause of death was still unclear and a post-mortem would be carried out once the couple's daughter arrived from China within two days.