Japan and the Republic of Korea (RoK) have reported their countries’ first fatalities of A/H1N1 influenza.

Authorities of Japan ’s Okinawa prefecture on Aug. 15 confirmed that a man aged 57 has died of the new strain of influenza, marking the first death from the pandemic disease in the country.

The victim lived in Okinawa prefecture and suffered from heart and kidney illness, according to Kyodo News.

Since Japan reported the first case of the new flu in May, more than 4,000 patients have been confirmed to be infected with the new influenza.

Also the same day, its neighbour RoK reported the first death from A/H1N1 influenza after a man, who found to be infected with the H1N1 virus, has died.

The deceased was a man in his 50s who recently returned from a trip to Thailand, Yonhap news agency reported, adding that three days after returning home on Aug. 8, he complained of high fever and was admitted to a local hospital as his health condition deteriorated.

The RoK has reported more than 2,000 cases of A/H1N1 flu since it recorded its first case in May./.