The Chinese mainland registered 49 new confirmed COVID-19 cases on Sunday, with 35 cases from overseas and 14 domestically transmitted, Chinese health authority said Monday. 

All of the 14 domestically transmitted cases are in northwestern Xinjiang Uygur Autonomous Region. And among the cases from overseas, 18 are in Shanghai. 

Shanghai's civil aviation department will strengthen the control measures for international flights and certain airlines will be halted as imported COVID-19 cases have been continuously reported on some inbound flights in Shanghai, according to local authorities on Monday. 

No deaths related to the disease were reported on Sunday, while 64 COVID-19 patients were discharged from hospitals. 

The total confirmed cases in the Hong Kong and Macao special administrative regions and the Taiwan region are as follows: 

Hong Kong: 4,079 (2,847 recoveries, 52 deaths) 

Macao: 46 (46 recoveries) 

Taiwan: 477 (441 recoveries, 7 deaths)