Congolese troops have fought back against Rwanda-backed rebels who the U.N. says are moving fast into the South Kivu province after seizing the region’s largest city and an international airport

At an M23 news conference in Goma on Thursday, Nangaa said the rebels aim to set up a new administration in the city of 2 million people that's now home to hundreds of thousands of displaced Congolese. The rebels spoke to reporters of their plans to return displaced people to their homes, presenting a major challenge to Tshisekedi.