Seven coal miners die in explosion in Coahuila

Reuters - An explosion on Wednesday in a coal mine in Coahuila in northern Mexico killed seven miners, officials said, highlighting lax safety conditions in small mines that are often poorly regulated.

articles.chicagotribune.com/2012-07-25/news/sns-rt-us-mexico-mine-explosionbre86o1qv-20120725_1_coal-mine-methane-explosion-coahuila