Emergency crews are working to rescue five workers trapped inside a coal mine that partially collapsed in northern Mexico, near where seven miners were killed in an explosion last week, AP reported. Mine owner Grupo Acerero del Norte said six miners were initially trapped Friday but that one has been rescued. It said in a statement that its own rescue personnel are working to get the workers out of the mine in the town of Nueva Rosita, in the state of Coahuila bordering Texas.