Beijing's Chaoyang District has been classified as a high-risk area for the COVID-19 pandemic after the recent occurrence of a novel coronavirus cluster, Pang Xinghuo, deputy director of the Beijing Center for Disease Prevention and Control, said on Monday at a news conference held by the Beijing municipal government.

According to Pang, an area is defined as "high-risk" for the pandemic if the total number of confirmed cases exceeds 50 or a novel coronavirus cluster occurs there in a period of 14 days.

On April 14, a cluster of novel coronavirus cases was confirmed in the district, where an imported case infected three of his family members.