Mine collapse in eastern Congo leaves 200 dead, authorities say. But rebels dispute the number

A mine collapse at a major coltan mining site in eastern Congo left at least 200 dead, according to Congolese authorities, a number disputed by the rebel group that controls the mine.

Miners digging for world tech material are dying in Congo. Here's why

A tunnel collapse at a rebel-run coltan mine in eastern Congo is feared to have killed at least 200 people, officials said.

Congo's miners provide the material in smartphones and tech. Now 200 are claimed dead

A mine collapse at a major coltan mining site in eastern Congo left at least 200 dead, according to Congolese authorities, a number disputed by the rebel group that controls the mine.