WUHAN -- The city of Qianjiang in central China's Hubei province reported one new imported asymptomatic COVID-19 case Tuesday, local authorities said on Nov 11.

The asymptomatic carrier, surnamed Wang, arrived in Hohhot, capital of north China's Inner Mongolia, from Kazakhstan via Belarus on Oct 16. During his quarantine in Hohhot, Wang was found positive for the virus after tests for nucleic acid and IgG antibodies on Oct 17.

Wang was released from quarantine on Oct 31 after his nucleic acid test turned negative and returned to Qianjiang on Nov 1.

Wang again tested positive for the virus after a throat swab COVID-19 test in Qianjiang on Tuesday night during a follow-up health visit by local authorities, according to a circular released by the local epidemic prevention and control headquarters.

Wang and his three family members were put under quarantine for medical observation Tuesday night.

All residents of the community where Wang lives will undergo nucleic acid tests.