A 30-year-old Indonesian who was infected with Influenza A (H1N1) died on Tuesday but his death was not related to the disease.

Instead the first year student at the International Centre for Education in Islamic Finance died of cardiac arrest at a local private hospital in Kuala Lumpur.

Health Minister Liow Tiong Lai said a preliminary post-mortem revealed that the patient was obese and suffered from symptoms akin to pneumonia and heart-related ailments.

"Twenty types of various specimens had been taken for virology, bacteriology, histopatology, biochemical and toxicology tests.

"As the outcome of the post-mortem tests had not been fully known, the cause of his death could not be finalised yet," he told reporters today.

Liow said the obese factor and the long duration of the illness must also be taken into account in this case.

He also said that the case was still under investigation and the official result could only be announced on Saturday, reported Bernama .

"It is learnt that the man had gone back to Indonesia for vacation and returned to Malaysia on July 5, and he was reported to be suffering from fever and cough since returning from Indonesia but he only had light symptoms.

"On July 20, he began to suffer from high fever and on July 21, he had gone for treatment at a private hospital in Kampung Baru, Kuala Lumpur," he said.

He said the man was later pronounced dead at 11.50 am on the same day.

Meanwhile the Health Ministry revealed that the total number of A(H1N1) cases in the country so far stood at 939 - 573 imported and 366 local infections.

As of this morning, 18 new cases were reported with one imported case and the rest all being from local infections.