A coal miner waits for a bus after coming aboveground at the Zasyadko mine, where he helped search for the bodies of colleagues in Donetsk, Ukraine, on March 4, 2015.
An explosion ripped through a coal mine before dawn Wednesday in war-torn eastern Ukraine, killing more than 30 people. Dozens more miners who were underground at the time are unaccounted for.
Miners arive at the Zasyadko coal mine on Wednesday.
The cause of the blast at the Zasyadko coal mine was not immediately clear. A 2007 explosion at Zasyadko killed 106 people.
A miner wounded in a blast at the Zasyadko mine lies in a bed at a hospital in Donetsk.
Anxious family members await word of their relatives outside the mine.
The explosion at the Zasyadko mine occurred more than 3,000 feet below the surface.
A miner waits on a bus after exiting the mine in Donetsk.
Miners wait in a room before going underground to help search for colleagues and clear debris following the explosion at the mine.