One residential compound in Erqi District of Zhengzhou was declared COVID-19 high-risk and six other areas in the city medium-risk, local health authorities said on Tuesday.

The capital of central China's Henan Province will conduct a second round of all-inclusive nucleic acid testing in Erqi District from Tuesday.

Erqi district of around 840,000 people has been the epicenter of a new wave of COVID-19 outbreak in the city which has seen 14 local transmissions and 65 asymptomatic cases as of Tuesday.