Colombia’s biggest coal exporter Cerrejon said on Thursday that four contractors had been killed and 12 others injured while repairing a coal-storage silo in the Andean nation.
See http://www.alertnet.org/thenews/newsdesk/N05169475.htm and http://laht.com/article.asp?ArticleId=361947&CategoryId=12393.
Source: http://londonminingnetwork.org/2010/08/colombias-cerrejon-four-contractors-die-in-accident/