Congo Authorities Report 200 Dead in Rubaya Coltan Mine Collapse

A deadly collapse at a major coltan mining site in eastern Congo has left at least 200 people dead according to government authorities, though the rebel group controlling the mine disputes the casualty figure.

The collapse occurred Tuesday at the Rubaya mining complex in eastern Congo’s mineral-rich region. The country’s Ministry of Mines said Wednesday that the disaster killed at least 200 people, marking one of the deadliest mining incidents in recent months.

The site lies in territory controlled by the M23 rebel group, whose recent resurgence has intensified the long-running conflict in eastern Congo.

Government officials described the collapse as the latest tragedy in the region’s informal and poorly regulated mining sector, where thousands of workers operate under dangerous conditions.

A miner at the site, Ibrahim Taluseke, told the Associated Press that he helped recover a large number of victims. “We are afraid, but these are lives that are in danger,” he said.

Taluseke added that local operators were reluctant to disclose the full scale of the disaster. “The owners of the pits do not accept that the exact number of deaths be revealed.”

Senior M23 official Fanny Kaj rejected the government’s account, disputing both the cause of the incident and the number of casualties.

“I can confirm that what people are publishing is not true,” Kaj said. “There was no landslide; there were bombings, and the death toll isn’t what people are saying.”

According to Kaj, only five people were killed. The rebel official also claimed the collapse was triggered by “bombings,” though no independent confirmation of that claim was included in the source material.

Rubaya sits in one of the world’s most important coltan-producing regions. Coltan is a metallic ore that contains tantalum, a critical material used in smartphones, computers, and aircraft engines.

The Democratic Republic of Congo produced roughly 40% of global coltan supply in 2023, according to the U.S. Geological Survey. Other major suppliers include Australia, Canada, and Brazil.

More than 15% of global tantalum production comes from Rubaya’s mines alone, making the area strategically important for global technology supply chains.

M23 rebels seized the town and its mining sites in May 2024. A United Nations report said the group now taxes the trade and transport of coltan, generating at least $800,000 per month from the operation.

Eastern Congo has experienced cycles of conflict for decades involving government forces and multiple armed groups. The resurgence of Rwanda-backed M23 rebels has escalated fighting in the region, worsening an already severe humanitarian crisis.

More than 7 million people are currently displaced across the country. Over 300,000 people have fled their homes since December, according to humanitarian data cited in the source material.

In June, the governments of Congo and Rwanda signed a U.S.-brokered peace agreement, and negotiations between rebel forces and Congolese authorities have continued. Despite those talks, fighting persists across several fronts in eastern Congo.

The peace deal between Congo and Rwanda also opened potential access to critical minerals for the U.S. government and American companies, linking the conflict directly to global resource competition.

The collapse at Rubaya also follows a similar incident last month that killed more than 200 people, underscoring persistent safety risks in the region’s mining sector.