The Chinese city of Xi'an tightened its lockdown measures and launched a new round of mass virus tests after daily coronavirus infections went beyond 150 three days in a row.
Authorities recorded 175 local cases on December 27, as it grapples with an outbreak that has pushed China's daily cases to record highs since early last year.
The 175 infections reported in Xi'an, in the northwestern Shaanxi province, were up from 162 on December 26, and 158 the day before, according to a government notice issued on December 28, bringing the total number of local cases to 810 in the city.
Authorities imposed lockdown on the 13-million residents in Xi'an on December 23 as they attempted to curb the spread.
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Households were allowed to send one member to shop for necessities every two days when the lockdown was imposed last week, but starting from December 27 residents have been barred from leaving houses except to take virus tests.
A new round of mass virus tests was launched on December 27 for all residents. It is the fifth mandatory test since December 19.
Authorities have also suspended most of passenger trains and all domestic flights coming into and leaving Xi'an, according to the state broadcaster CCTV.
China is one of the few remaining countries with a "zero case" policy, with authorities implementing mass-testing when infections are found in the community.Xi'an is the capital of Shaanxi province, famed for the Terracotta Warriors and other imperial relics.