Six miners killed in second Mexico coal mine explosion
06 August 2012
Six miners were killed in a coal mine collapse in the northern Mexican state of Coahuila on August 3, according to Reuters. The explosion is the second disaster at a small coal mine in northern Mexico in the past 10 days, highlighting the poor safety standards and conditions at mines in the area. The July 25 explosion killed seven miners.

This was the second fatal mine incident in Coahuila in 10 days
The latest blast was triggered when a large amount of methane gas ignited causing the collapse of 100 tonnes of coal, mine owner Altos Hornos de Mexico (AHMSA) said in a statement.
A methane explosion in 2006 at the much larger Piedras Negras mine, owned by Grupo Mexico, killed 65 miners.