NEW : `` The grueling around-the-clock rescue operation that claimed three lives and injured six others has also taken a tremendous toll on the many brave rescuers and the local community , and our thoughts and prayers are with them all , '' Chao said in a statement . President Bush says he and first lady are deeply saddened by the tragedy . Mine Safety and Health Administration chief : " The president is very concerned about this accident, as well as all of our other investigations into mine safety in America. " The six men have been trapped underground since August 6 . Seven bore holes drilled into the mountain have found no signs of life .
NEW : President Bush says he and first lady are deeply saddened by the tragedy . Mine Safety and Health Administration chief : " The president is very concerned about this accident, as well as all of our other investigations into mine safety in America." The six men have been trapped underground since August 6 . Seven bore holes drilled into the mountain have found no signs of life .