At least 13 Mexican miners were trapped on Tuesday in the northern state of Coahuila after an explosion in a coal mine caused partial collapse of the structure, Mexican Labor Minister Javier Lozano said, Xinhua reported.
The accident took place in Coahuila's Sabinas municipality and causes of the explosion were still unclear, Lozano told reporters in the national capital, before flying to the scene of the accident.
Sabinas Governor Jesus Montenayor told local television that the explosion may have been triggered by accumulated gases in the mine, and local emergency personnel were already on the scene.
It was not immediately known if the explosion had caused any injuries, but the 13 trapped miners were all believed to be alive.