STORY: Shanghai reported nearly 25,000 locally transmitted COVID-19 infections on Sunday, as residents of China's most populous city voiced complaints over food and basic supplies and concern spread that more cities may soon be in the same situation.
Streets of the locked-down financial hub of 26 million people remained as curbs under the city's "zero tolerance" policy allow only healthcare workers, volunteers, delivery personnel or those with special permission to go out.
Shanghai's case numbers are small compared to some cities globally, but it is battling China's worst COVID outbreak since the virus emerged in the central city of Wuhan in 2019.
The city has become a test bed for China's elimination strategy, which seeks to test, trace and centrally quarantine all COVID-positive people to stem the spread of the coronavirus.
The curbs have sharply squeezed supplies of food and other essentials. Many supermarkets have been shut and thousands of couriers locked in. Access to medical care has also been a concern.