Contact was lost with ten people Saturday following an accident in a coal mine in southern Poland, the company that owns the mine announced, is the second of its kind within days.
“The rescuers were unable to contact 10 people,” GSV said in a statement.
She explained that an earthquake hit the mine at 03:40 am (0140 GMT), which led to the leakage of methane gas.
In 2018, five miners died in an earthquake that struck the mine itself.
Ten missing in Poland mine accident
