The Chinese mainland on Sunday reported 21 imported COVID-19 cases but no new locally transmitted cases, the National Health Commission said in its daily report on Monday.
Among the imported cases, five were reported in Guangdong, four in Shanghai, three each in Tianjin and Yunnan, two in Beijing, and one each in Shanxi, Zhejiang, Henan and Sichuan.
One suspected case arriving from outside the mainland was reported in Shanghai on Sunday.
No new deaths related to COVID-19 were reported Sunday, said the commission.
Zhengzhou, the capital city of central China's Henan Province, now has no high-risk areas for the novel coronavirus, the city's COVID-19 prevention and control headquarters announced Saturday.
The COVID-19 risk level in one area of the city was downgraded from high to medium from 8 p.m. Friday, while another two areas were downgraded from medium to low from 8 p.m. Friday, marking the clearance of all areas with high infection risks in Zhengzhou.