There has been an explosion at the Zasyadko coal mine in Donetsk in Ukraine. Sixty miners were underground when the blast took place. More than 20 miners have been brought safely to the surface. Five more had to be lifted-out, suffering from serious burns
The cause of the blast is still unknown.
It is the second blast in the coal mine in as many weeks.
On November 18, an explosion claimed the lives of 101 miners.
Then the investigators named a breach of the safety regulations among the possible reasons for the blast.