Mine Explosion Kills 30 in War-Weary Eastern Ukraine

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.

Vadim Ghirda / AP

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.

Baz Ratner / X02483

A miner wounded in a blast at the Zasyadko mine lies in a bed at a hospital in Donetsk.

John Macdougall / AFP

Anxious family members await word of their relatives outside the mine.

Baz Ratner / X02483

The explosion at the Zasyadko mine occurred more than 3,000 feet below the surface.

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A miner waits on a bus after exiting the mine in Donetsk.

Vadim Ghirda / AP

Miners wait in a room before going underground to help search for colleagues and clear debris following the explosion at the mine.

Vadim Ghirda / AP