Just a week after the end of a two-month lockdown, the Chinese metropolis of Shanghai has announced new mass tests and curfews.
After eleven new infections were discovered on Thursday, authorities decided that eight districts should be temporarily shut down and tested over the weekend.
This means that around 15 million people are no longer allowed to go outside or can only move around in their neighborhood to a limited extent.
Initially, the strict measures were only announced for the Minhang district.
They were later expanded to seven other districts.
The affected districts will be placed under "closed management" for the test period, as reported by the Chinese state newspaper "Global Times".
After the mass testing is complete, neighborhoods where positive cases have been found are then usually cordoned off for an extended period of time.
After two months, the economic and financial center of Shanghai only lifted its controversial and sometimes chaotic complete lockdown last Wednesday.
The lockdown led to the disruption of supply chains and was also felt in Germany.
The curfews for the 26 million residents have largely been lifted, although some neighborhoods remained under lockdown.