Thirteen million people in a major Chinese city were under strict stay-at-home orders starting today to stop the spread of Covid-19, as authorities scramble to keep their zero-case strategy six weeks ahead of the Winter Olympics.
Xi'an - home to the world-famous Terracotta Warriors - sharply tightened travel restrictions and told residents to stay home, after several hundred recently reported infections were linked to an initial case at a university in the city.
With Beijing preparing to host the 2022 Winter Olympics in February, China is on high alert as it fights local outbreaks in several cities.
But cases have been bubbling up in recent weeks. Xi'an reported another 63 cases today, days after authorities began mass testing all 13