Rwanda-backed rebels were expanding their presence in eastern Congo after capturing Goma, the region's major city, the U.N. said Friday, also expressing concerns over executions it learned were carried out by the rebels in recent days following a major escalation of their yearslong rebellion.

What has been a slow-burn crisis in eastern DRC has again exploded into the open. Kagame appears to have calculated that a change of US administration is a good time to strike. A peace process mediated by Angola and sponsored by the US collapsed in the dying days of Joe Biden’s administration.

As an East African bloc urged an immediate ceasefire in eastern Democratic Republic of Congo, Rwandan-backed M23 rebels who seized the city of Goma extended their advance on Wednesday, and Congo said it planned a campaign to recover lost territory.