A staff member disinfects the waiting room every 4 hours at Beijing Railway Station in Beijing, capital of China, Jan. 12, 2021. Measures of COVID-19 prevention and control have been strengthened at the Beijing Railway Station. (Photo: Xinhua)

The Chinese mainland on Tuesday reported 115 newly confirmed COVID-19 cases, of whom 107 were locally transmitted and the rest arrived from outside the mainland, the National Health Commission said Wednesday.

Of the locally transmitted cases, 90 were reported in North China's Hebei Province, 16 in Heilongjiang Province and one in Shanxi Province, the commission said in its daily report.

No deaths related to the disease were reported, said the commission, adding that 28 COVID-19 patients were discharged from hospitals following recovery on Tuesday.

By the end of Tuesday, a total of 4,451 imported cases had been reported on the mainland. Among them, 4,165 had been discharged from hospitals following recovery, and 286 remained hospitalized. No deaths had been reported among the imported cases.