Shanghai reported two locally transmitted asymptomatic COVID-19 cases outside quarantine zones on Wednesday.

One case was a 33-year-old female living in Huangpu district who returned to the city from Lhasa, Tibet on Aug 14, according to Zhao Dandan, deputy director of the Shanghai Health Commission.

The other infection was a 27-year-old male who lives on 26 Guangzhong branch road in the Guangzhong sub-district of Hongkou district. He was a delivery driver and had been to other provinces in the past 14 days.

By 4 pm, 409 close contacts and 231 secondary contacts of the cases have been identified and quarantined, 446 of whom have tested negative so far.

The regions where the two patients have been were classified as high-risk areas. It includes the male's residence and the zone in the east of Dapu road, Wuliqiao sub-district, south of Gonglong, Lane 303, Dapu road, west of Ji Hotel located on Dapuqiao road, and north of Quxi road in Huangpu district.