China's economic hub, Shanghai, has reported its highest daily tally of coronavirus cases for the fifth straight day, despite a lockdown being in place. Authorities say daily supplies will be distributed to residents, but complaints contradicting that claim are posted online.

Authorities in Shanghai reported 17,077 new cases of the coronavirus on Tuesday, with many showing no symptoms.

City residents underwent COVID tests on Wednesday. Local authorities have said residents will remain under tight movement restrictions until a decision on how to proceed is reached based on analysis of the test results.

Shanghai's top official, Li Qiang, stressed at a coronavirus response meeting on Wednesday that sufficient daily necessities will be provided to the confined residents.

But food and other supplies have apparently not reached all corners of the city, resulting in complaints being posted online.

Amid China's zero-COVID policy, an isolation strategy has been in place for close contacts and others.

Local media, including those affiliated with the Chinese Communist Party, have reported that neighboring Jiangsu Province and other areas have begun accepting such people.