SHANGHAI, March 6 (Reuters) - Mainland China reported 10 new COVID-19 cases on March 5, compared with nine cases a day earlier, the country's national health authority said on Saturday.

The National Health Commission, in a statement, said all of the new cases were imported infections originating from overseas. The number of new asymptomatic cases, which China does not classify as confirmed cases, rose to 23 from 12 cases a day earlier.

The total number of confirmed COVID-19 cases in mainland China now stands at 89,962, while the death toll remained unchanged at 4,636.

(Reporting by Luoyan Liu and Emily Chow; Editing by Simon Cameron-Moore)