US President-elect Joe Biden issued a dire warning as the COVID-19 pandemic continues worsening in the United States. "We are still facing a dark winter," Biden said from Wilmington, Delaware, on Monday as the number of COVID-19 cases in the country has topped 10 million, with 237,000 deaths.

"The challenge before us right now is still immense and growing." The Democrat went on urging Americans to wear masks, Xinhua news agency reported. "The goal of mask wearing is not to make your life less comfortable, or to take something away from you," he said. "It is to give something back to all of us. A normal life."