The city of Suifenhe, at the China-Russia border in northeast China's Heilongjiang Province, has beefed up prevention against epidemic spread as the number of confirmed COVID-19 cases from overseas continues to rise. The Suifenhe port, a major land checkpoint at the border, has shut down its passenger inspection channel and tightened checks on the freight inspection channel. According to the city's emergency headquarters on epidemic prevention and control, Suifenhe has demanded all inbound personnel undergo a fortnight quarantine and two nucleic acid testings and one serum antibody testing in designated facilities, which are put under close-off management.