Rwanda-backed rebels were quickly 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 following a major escalation of their yearslong rebellion.

A rebel alliance spearheaded by the ethnic Tutsi-led M23 militia said it had seized the lakeside city of more than 2 million people.

Kenyan President William Ruto, the East African Community (EAC) chair, convened a virtual summit on 29 January to discuss the worsening security situation – which Tshisekedi skipped. In his absence, the summit “strongly urged” him to engage directly in talks with the M23.