Four miners were taken to hospital with burns, Censor.NET reports citing the State Emergency Service press office.
"In Bilozerske town on June 12 at 9:50 p.m. at the depth of 600 m in Novodonetska mine of DTEK Dobropillavuhillia, a flash of methane and air mixture occurred without subsequent burning. Four miners were injured and taken to hospital with burns of various severity," the message says.
A total of 122 miners were down in the mine at that time, 29 of them at the area of the emergency. All of them were taken to the surface.
The operations halted in the area of the emergency, but the rest of the mine operates in regular mode.