GOMA, Congo -- At least 200 people were killed earlier this week when a landslide collapsed several mines at a major coltan ...

The accident happened at the Rubaya mines in the Democratic Republic of the Congo.

At least 200 were killed when mines collapsed at a coltan mining site in eastern Congo this week, rebel authorities say. The Rubaya mines, where the disaster occurred, supply a key metal for ...

A large artisanal coltan mining site in eastern Democratic Republic of the Congo collapsed after heavy rainfall, burying ...

More than 200 people have been killed in a collapse at the Rubaya coltan mine in eastern Democratic Republic of Congo (DRC), ...

At least 200 people are feared dead after a massive landslide hit the militia-controlled Rubaya coltan mine in eastern DR ...

A massive landslide this week killed at least 200 people in the Rubaya mine in the eastern DR Congo province of North Kivu, ...

A landslide caused by heavy rain collapsed artisanal coltan mines in eastern Congo, killing more than 200 people. The mines, ...

Global Witness is calling for businesses and governments to better consider the human cost of rare earth minerals.

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, REUTERS -Rwandan company Boss Mining Solution bought minerals smuggled from rebel-held areas of neighboring Congo, helping fund an insurgency in that vast African country, according to a ...

Rubaya mine produces about 15% of the world’s coltan, which is processed into tantalum, used in mobile phones ...