SINGAPORE has its first H1N1-related death, said the Health Ministry in a statement.

A 49-year-old man with multiple health problems passed away on Saturday afternoon from a heart attack, caused by severe pneumonia with underlying H1N1 infection.

A patient of diabetes, hypertension and high cholesterol, he was admitted to Changi General Hospital on July 16, after 4 days of flu-like symptoms.

He was then diagnosed with the H1N1 flu.

Meanwhile, a 55-year-old man with hypertension and ischemic heart disease has been tested positive for H1N1 flu.

He is warded at Singapore General Hospital.

He suffered shortness of breath and a fever on Friday and was admitted after investigations showed that he had an acute heart attack.

He is currently in a stable condition.

While the majority of the H1N1 cases remain mild, MOH says it can cause complications and even death in high-risk individuals with underlying medical conditions.

It advises individuals especially those in the high risk group to seek prompt medical attention if unwell with flu-like symptoms.

Members of the public who develop fever, cough, runny nose or sore throat can visit the nearest Pandemic Preparedness Clinic (PPC), polyclinic, or their GP clinics for initial assessment and treatment.

If severe symptoms such as breathlessness and chest pains kick in, do call 995 immediately for an emergency ambulance.