Beijing recorded no new domestically transmitted COVID-19 cases on Monday for the 15th day in a row. The total number of cases since a cluster outbreak was discovered at the Xinfadi market on June 11 stands at 335, the municipal health commission said on Tuesday.

As of Tuesday afternoon, 248 patients, or 74 percent of the total patients in the local cluster, have recovered while none of the remaining 87 hospitalized patients are seriously or critically ill, a senior municipal official told a daily press briefing Tuesday afternoon.

As of now, nine asymptomatic people are under medical observation in the Chinese capital.

Wu Zunyou, chief epidemiologist at the Chinese Center for Disease Control and Prevention (CDC), who's also at Tuesday's briefing, said the Xinfadi market outbreak and its related spread have ended as Beijing lowered its emergency response level to COVID-19 on Monday. 

But Wu warned resurgence could become a "normality" given a similar outbreak could happen in other parts of China and growing pressure from overseas as more international flights resuming operation.