Eight months after a deadly blast in the southern Oranovo mine killed two, a puzzling accident claimed three lives in Dzhurkovo pit near the town of Laki. File photo by Nadya Kotseva (Sofia Photo Agency)
Three miners died and at least two others were injured in a puzzling mine accident early Thursday near the southern town of Laki.
What caused the tragic accident in Dzhurkovo mine is still unknown, but doctors who take care of the injured workers said gas poisoning is the case.
The night shift manager told reporters that no gas was detected before the workers went down the pit.
Investigation has been immediately launched on the case.