Shanghai reported one asymptomatic COVID-19 case outside the quarantined and controlled population on Saturday.

The infected case, a 35-year-old man, lives in Jiuting, Songjiang district, and has travel history in and out of Shanghai.

A total of 68 close contacts and 59 secondary contacts have been identified and put under control. Testing of 265,497 people with exposure risks is underway.

The residency of the case in Jiuting township has been marked as a high-risk zone and locked down, and the neighboring areas were elevated to medium-level risk.

Gu Jieyan, vice-governor of Songjiang, said the local government will ensure the life of 3,002 people locked-down will have a reliant supply of daily necessities and medicines, and disinfect the related places.

Gu said the district will strengthen inspection in Songjiang railway station and Songjiang South railway station, and require inbound travelers to report to local communities within 12 hours upon arrival.

Travelers will have to undergo seven-day centralized quarantine or home health monitoring if their travel history involves high or medium risk areas. People coming from low risk areas are not subject to quarantine, but have to take two nucleic acid tests in the three days after arriving in Shanghai.

Yuan Zheng'an, a member of the city epidemic prevention and control leadership group, said the majority of recent COVID cases were related to the outbreak in a karaoke club and a total of 23,000 close contacts and 50,000 secondary contacts have been identified.