Miners work at the Gorniak 95 coal mine in the town of Makiyivka, near the regional capital of Donetsk in eastern Ukraine May 15, 2014. Donetsk and Luhansk yield more than 15 percent of Ukraine's GDP,... more 
Miners work at the Gorniak 95 coal mine in the town of Makiyivka, near the regional capital of Donetsk in eastern Ukraine May 15, 2014. Donetsk and Luhansk yield more than 15 percent of Ukraine's GDP, including around a third of its industrial output from the giant steel smelters and other heavy industry of the Donbass, one of Europe's most productive coal-producing regions. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS BUSINESS EMPLOYMENT ENERGY) less 
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Reuters | Photo By STRINGER / REUTERS
Thu, May 15, 2014 9:39 AM EDT