A man embraces Jose Manuel Gonzalez (R), brother of coal miner Orlando Gonzalez, who was killed by a gas leak in the Emilio del Valle well, part of the Santa Lucia coal mine, on the first of three days of mourning on October 29, 2013 outside the morgue in Pola de Gordon, in Leon, Spain. A methane gas leak killed six coal miners yesterday, while five others were injured at a depth of around seven hundreds meters.