Nine coal miners were missing on Thursday after a methane gas explosion in a pit in the east Ukrainian region of Donetsk, the emergency services said on Thursday.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/nine-miners-missing-after-pit-blast-east-ukraine
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/reuters
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining-accident
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/coal
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ukraine