China has announced its biggest city-wide lockdown since the Covid outbreak began more than two years ago.
The city of Shanghai will be locked down in two stages over nine days while authorities carry out Covid-19 testing.
The important financial hub has battled a new wave of infections for nearly a month, although case numbers are not high by some international standards.
Authorities had so far resisted locking down the city of some 25 million people to avoid destabilising the economy.
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