"China's conviction and sentencing of Michael Spavor is absolutely unacceptable and unjust," Trudeau said in a statement after a Chinese court sentenced Spavor to 11 years in prison
China has some of the world's strictest rules regarding the production of greenhouse gas-emitting vehicles, as it battles unhealthy levels of air pollution in its crowded cities
Some western nations, including the United States and Britain, have criticised the law but Canada is the first to explicitly mention the exit-ban risk in a travel advisory
Long lines of residents waited at outdoor testing stations in the summer heat Tuesday, fanning themselves with paper forms while workers in hazmat suits took throat samples
The city of 11 million is "swiftly launching comprehensive nucleic acid testing of all residents", senior Wuhan official Li Tao said at a press conference on Tuesday