Residents of Goma reported gunfire and shelling after rebels overran Congolese troops. U.N. officials estimated that more than 1 million displaced people were now inside the city.

Rebels in Democratic Republic of Congo are closing in on a key city in the mineral-rich region aided by neighboring Rwanda’s army, the head of a peacekeeping mission told United Nations Security Council members during an emergency meeting on Sunday.

As M23 militia fighters, allegedly alongside Rwandan troops, push into the eastern DR Congo city of Goma, capital of the mineral-rich North Kivu province, UN officials and countries, including France,