People quarantined in the Chinese city of Xi'an are bartering supplies amid continuing worries over food shortages.
Social posts show locals swapping cigarettes and tech gadgets for food.
About 13 million have been confined to their homes since the 23rd of last month.
The strict measures come ahead of the Lunar New Year and the Winter Olympics due to be held in Beijing next month.
Overnight, the city of Yuzhou was shut down after the discovery of just three cases, all of them asymptomatic.
Yuzhou, with a population of 1.1 million, has closed its transport system and entertainment venues and banned almost all vehicles from the roads.
All but essential food shops are shut, with only workers involved in epidemic prevention allowed out.
[Source: BBC]
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