South Korea on Thursday confirmed that a man who died a day earlier had been infected with Middle East Respiratory Syndrome (MERS), the third fatality in a virus outbreak that has caused growing alarm in the country.

The 82-year old South Korean, in a hospital with asthma and bacterial pneumonia, had shared a room with others infected with MERS and died on Wednesday night, the health ministry said.

He became the 36th confirmed MERS infection in South Korea, which has the most cases outside the Middle East.