Northwest China's Gansu Province reported four new locally transmitted confirmed COVID-19 cases between 11 p.m. Tuesday and 11 a.m. Wednesday.
The four people, three from the provincial capital Lanzhou and one from the city of Zhangye, are all close contacts of a previously confirmed case, according to a statement from the provincial health commission.
The province has registered a total of eight locally transmitted confirmed COVID-19 cases and two asymptomatic cases since new local infections were reported Tuesday.
On Wednesday, local authorities temporarily closed three popular grottoes including a UNESCO World Heritage site, the Mogao Grottoes, to visitors in efforts to contain the spread of infections.
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