The Chinese mainland on Tuesday reported four new locally transmitted COVID-19 cases, the National Health Commission said in its daily report on Wednesday.
Of the four local cases, two were reported in Liaoning and the other two in Yunnan, the commission said.
Tuesday also saw reports of 18 imported cases in six provincial-level regions, it said.
No new suspected cases or new deaths related to COVID-19 were reported on Tuesday, said the commission.