Summary: A landslide at a coltan mine in Rubaya, Democratic Republic of the Congo, has killed more than 200 people, including about 70 children, according to government authorities. The M23 rebel group, which controls the mine, disputes this account, claiming only five died due to bombings, not a landslide. This is the second major fatal collapse at the site in recent months.
Main Topics Covered: 1. The deadly landslide at the Rubaya coltan mine and the conflicting casualty reports. 2. The control of the mine by the M23 rebel group and the resulting dispute over the cause. 3. The strategic importance of the mine as a major global source of coltan.