The patient, 26, living in Bac Tu Liem district, sat near two Chinese citizens on aboard flight VN160 from Da Nang to Hanoi on April 29. The two Chinese citizens were later confirmed as COVID-19 infections.
Via contact tracing, relevant agencies identified eight other locals in Bac Tu Liem, Nam Tu Liem, Hai Ba Trung, Hoang Mai and Cau Giay districts, who had come into close contact with the Hanoi patient.
Contact tracing is underway to early quarantine and test those in contact with the patient.
Earlier on May 2 the Ministry of Health issued an urgent telegram, looking for passengers on flight VN160 from Da Nang to Hanoi, after two Chinese citizens on board the same flight were diagnosed with the virus.
During the past four days, Hanoi capital has recorded four coronavirus infections, including three living in the outlying district of Dong Anh who were closely related to the coronavirus outbreak in Ha Nam province.