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Nine workers die in Colombia coal mine explosion

By Thomson Reuters May 4, 2026 | 11:39 PM

BOGOTA, May 4 (Reuters) – A coal mine explosion in Colombia’s Cundinamarca province killed nine workers and left six ​others injured, the national mining agency ‌said on Monday, several weeks after it issued risk control recommendations for the site.

The blast occurred at the La Ciscuda mine, operated ‌by ​Carbonera Los Pinos. The ⁠company could not ⁠immediately be reached for comment.

The mining agency said the accident seemed to be caused by a build-up of gases, ​and that it had recommended that the mine strengthen its safety measures ⁠during a site visit ⁠on April 9 in which ​it had identified gases, including methane, that ​it said could become dangerous.

“As the ‌ANM has warned during its inspection visits, coal deposits can present accumulations of gases such as methane, as well ⁠as concentrations of coal dust,” the agency said in a statement.

The six workers who survived ⁠were taken ‌to a regional hospital for ⁠treatment.

Serious accidents are common at ​open-pit ‌and subterranean coal and gold ​mines in ⁠Colombia, mostly at illegal or informal operations and those without proper safety measures.

(Reporting by Nelson Bocanegra; Writing by Daina Beth Solomon; Editing by Christian Schmollinger and ​Lincoln Feast.)