An official in the Democratic Republic of Congo said that more than 200 people died this week in a collapse at the Rubaya coltan mine in the east of the country.

Rubaya produces about 15 percent of the world’s coltan, which is processed into tantalum, a heat-resistant metal in increasing demand by manufacturers of mobile phones, computers, aerospace components, and gas turbines.

The mine site, where locals work in manual mining for a few dollars a day, has been under the control of the March 23 rebel movement since 2024.

The collapse occurred on Wednesday, and the exact number of casualties was not clear until evening. The official said, “More than 200 people were victims of this landslide, including miners, children, and women at the market. Some people were rescued in time and sustained serious injuries.”

A regional official said the confirmed death toll was at least 227. He spoke on condition of anonymity as he was not authorized to brief the media.

Destroyed vehicles and houses resulting from the armed attack on Wuro village in Kwara State
Nigerian forces in Kwara State after the terrorist attack on the Muslim village
Nigerian forces in Kwara State after the terrorist attack on the Muslim village
Transporting the bodies of victims of the terrorist attack
Transporting the bodies of victims of the terrorist attack
Houses destroyed as a result of the armed attack on Wuro village in Kwara State
Houses destroyed as a result of the armed attack on Wuro village in Kwara State
Burying the bodies of victims of the armed terrorist attack on Wuro village in Kwara State
Burying the bodies of victims of the armed terrorist attack on Wuro village in Kwara State
Governor Uba Sani of Kaduna State shaking hands with previously kidnapped church congregants after their return
Governor Uba Sani of Kaduna State shaking hands with previously kidnapped church congregants after their return
The American crew in the Nigeria-United States Joint Task Force
The American crew in the Nigeria-United States Joint Task Force


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Rubaya coltan mine

The Rubaya coltan mine is a significant mining site in the Democratic Republic of the Congo, located in the resource-rich North Kivu province. Historically, the extraction of coltan—a mineral essential for electronics—has been central to the local economy but has also been linked to armed conflict, illegal trade, and severe human rights issues. Its operation remains deeply entangled with both the region’s instability and global supply chains for modern technology.