The U.N. warned Wednesday the humanitarian situation in the northern Tigray region of Ethiopia could get even worse and that the rest of the country could become destabilized due to the volatile situation. This comes a day after Tigray opposition groups said at least 52,000 people have been killed since a conflict in the region broke out in November. Some 3 million people have been displaced. Meanwhile, up to 20,000 Eritrean refugees in Tigray are missing after two camps were destroyed. The U.N. says many were abducted and forcibly returned to Eritrea.