Money | coal mine Last 4 Miners Found Dead Death toll makes explosion worst coal-mining disaster in 40 years By Marie Morris Posted Apr 10, 2010 2:18 AM CDT Copied Ambulances leave Massey Energy's Upper Big Branch mine in Montcoal, W.Va., after the announcement early Saturday, April 10, 2010, that rescue workers located the four missing bodies deep in the mine. (AP Photo/Bob Bird) Dashing hopes that they had survived the massive explosion that killed 25 of their colleagues, four coal miners were found dead early this morning in a mine in Montcoal, W. Va., making Monday's incident the worst coal-mining disaster in over a generation. The head of the Mine Safety and Health Administration said the next steps are recovering the bodies and investigating the blast, the Charleston Gazette reports. "I can assure you that no stone will be left unturned," said Kevin Stricklin. "It is infuriating that in this day and age, and in this country, that such a disaster could still happen," Sen. Robert Byrd said Friday, while the rescue effort was still under way. "I am sick. I am saddened, and I am angry." The explosion, in Massey Energy's Upper Big Branch mine, caused the greatest loss of life since an incident in a Kentucky coal mine in 1970 killed 38. Read These Next White House rolls with Trump's 'daddy' nickname. New Fox star, 23, misses first day after car troubles. Supreme Court ruling is a big blow to Planned Parenthood. Gavin Newsom has filed a massive lawsuit against Fox News. Get breaking news in your inbox. What you need to know, as soon as we know it. Sign up Report an error