Every province has advised residents not to leave as flights are cancelled and Beijing suspends more than a dozen rail lines
China has dramatically tightened travel restrictions as it seeks to control the country’s worst outbreak in months, with hundreds of Delta variant cases linked to airport employees.
The latest outbreak has so far infected more than 400 people in 25 cities, including the capital city Beijing, and in Wuhan for the first time since it contained the first Covid-19 outbreak last year. Cases have been reported in 17 of the 31 provinces.
