A staff member processes samples for nucleic acid test at the laboratory of KingMed Diagnostics, a Chinese medical diagnostic testing company in Beijing, capital of China, June 25, 2020. (File photo: Xinhua)

Beijing said on Tuesday it observed no increase in confirmed COVID-19 cases, but it did have one new asymptomatic patient on Monday.

The capital city had reported a total of 335 locally contracted cases since June 11, among which 15 have been discharged from the hospital after recovery, 320 remain hospitalized.

There were 31 asymptomatic cases still under medical observation.