Mina de Barroterán coal mine disaster
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Mina de Barroterán coal mine disaster was the second worst disaster in Mexico´s coal mining history. This disaster occurred March 31, 1969 and 153 miners were killed. During 19th, 20th and 21st centuries near 900 Mexican miners died in explosions or floodings accidents related with the operation of coal mining in the Mexican state of Coahuila.