The company said that the explosion damaged the railway line and also overturned the truck of Cerrejón’s Protection Division staff.
A train transporting coal from the mine to Puerto BolÃvar was derailed and no one was reported to have been injured in the attack.
Cerrejón, which is jointly owned by the subsidiaries of BHP Billiton, Anglo American, and Glencore Xstrata, is an integrated mining and transport complex in La Guajira.
The property includes 150km railroad, in addition to a thermal coal open-pit and a maritime port, and claims to be the largest private exporter in Colombia.
Cerrejón said that it will not accept any violent actions that generate significant economic losses and environmental damage, with a high risk of fatalities.
"Cerrejón will continue to work under the strictest respect for the law, and in maintaining its effort to do responsible mining with workers, the environment and communities neighbouring the operation," the company said.
