Analysts say the deadly march by Rwanda-backed rebels across eastern Congo could widen into a regional conflict drawing in even more countries, and two neighboring nations with the most involvement in the mineral-rich area might be the key to stopping the violence.

The Rwanda-backed M23 armed group was threatening another key town in eastern Democratic Republic of Congo on Friday, as the United Nations top rights body said it would launch an investigation

The U.N. says more than 110,000 displaced people have in recent days left settlement camps in eastern Congo’s cities controlled by Rwanda-backed rebels after the rebels were accused of forced camp clo