Yonhap reported that a gas explosion at a coal mine in South Korea has killed two people and injured six others.

The blast occurred at around 8 PM on Friday when 9 miners were working at a site about 970 meters deep or 3,400 meters from the entrance.

Mr Chang Jae-koo a police officer said that wounded are being treated for carbon monoxide poisoning at nearby hospitals in Taebaek, some 250 kilometers southeast of Seoul.

Two of them were transferred to a special hospital in Seoul for treatment of burns.

Mr Chang said police investigators questioned the ninth miner who was not injured and walked out of the mine by himself.

An investigation is under way to determine the exact cause of the accident.

Taebaek was once the largest mining city in South Korea with 44 mines, though the number has now dwindled to just two.

(Sourced from yonhapnews.co.kr)