Covid-19: Shanghai warns lockdown violators will be punished as cases hit 25,000

The Chinese city of Shanghai warned on Wednesday that anyone who violates strict Covid-19 lockdown rules will be dealt with strictly, while also rallying people to defend their city as its tally of new cases rebounded to more than 25,000.

The city police department spelled out the restrictions that most of the 25 million residents are facing and called on them to "fight the epidemic with one heart ... and work together for an early victory".

"Those who violate the provisions of this notice will be dealt with in strict accordance with the law by public security organs ... If it constitutes a crime, they will be investigated according to law," the department said in a statement.

The financial and commercial hub is under huge pressure to try to contain China's biggest Covid-19 outbreak since the coronavirus was first discovered in the city of Wuhan, some 800km to the west, in late 2019.

Shanghai police also banned cars from the roads apart from those involved in epidemic prevention work or transporting people in need of emergency medical treatment.

They also warned increasingly frustrated residents, millions of whom are confined to their homes and struggling to get hold of daily supplies, not to spread false information or forge road passes or other clearance certificates.

At least 11 Taiwanese companies, mostly making parts for electronics, said on Wednesday they were suspending production because of the disruption from China's Covid controls.