The Oranovo coal mine is located 2 km away from the town of Simitli in southwestern Bulgaria. Photo by BGNES
Rescuers have taken a detour to avoid a dangerous section on the 9th day of looking for two miners who went missing in Bulgaria's Oranovo coal mines last week.
The collapse, believed to have been caused by groundwater, a feeble earthquake, and poor maintenance of the mine, has killed two other miners.
The rescue team have almost reached the place the two missing miners are presumed to be located.
But as the collapsed masses were judged to pose objective danger, an aiding expert team has decided that they dig a detouring additional gallery to avoid the sector.
The rescue work continues.