Shanghai reported a new COVID-19 asymptomatic case at community level on Tuesday amid the declining trend in the city's total infection numbers.

A 28-year-old man tested abnormal during regular nucleic acid screening in his community in Juyuan New Area in the outskirts Jiading District, a precautionary area.

The community at 898 Yongjing Road has been elevated to a medium-risk area, the Shanghai Health Commission said.