Shanghai has enhanced its COVID-19 prevention and control measures on people coming from domestic high- and medium-risk areas, authorities said on Thursday.

People coming from, or passing through, such areas in China should inform their residential or village committees, work units or hotels immediately, or within 12 hours after arriving in Shanghai, the city's epidemic prevention and control authorities said.

Anyone coming from, or passing through, high-risk areas is required to have two nucleic acid tests and quarantine for 14 days at designated venues.