More than 200 people have been killed in a mine collapse in eastern Democratic Republic of Congo, rebel authorities have reported. The incident occurred in the town of Rubaya, where heavy rains caused the mine to give way, according to Lumumba Kambere Muyisa, the spokesman for the North Kivu region's rebel governor. The unfolding tragedy initially left the death toll uncertain. Among the victims were women and children involved in mining coltan, a vital mineral for producing electronics like smartphones and computers. A former supervisor emphasized the neglect of the site, which exacerbated the risks of such accidents and hindered rescue operations. Eyewitness accounts revealed that fewer than 20 survivors are receiving treatment following the disaster, with some families expressing their grief and disbelief at the loss of their loved ones. Governor Erasto Bahati Musanga visited survivors soon after the incident. The mine is crucial as it holds approximately 15% of the world’s coltan supply and half of the DRC's deposits, highlighting the urgent need for safety and proper regulation in the mining sector, particularly under the control of M23 rebels who have been accused of exploiting local resources since 2024.