The case of the 24-year-old was confirmed on Wednesday after the result of her nucleic acid test for the novel coronavirus came out positive, the city's health commission said.

The woman works at Zhongquan Plaza, an electronic product retail center in central Urumqi. She was taken to a designated hospital for COVID-19 patients after showing symptoms, including a sore throat on July 10. She started to have a fever and headache on Tuesday.

Three people who had contact with the woman were found to be asymptomatic cases. Local authorities are still trying to find out how the woman was infected.

Meanwhile, a man from Urumqi who runs a business in Shaoxing city, East China's Zhejiang province, was confirmed to be an asymptotic case, the Zhejiang Health Commission said on Thursday.

The 50-year-old flew to Hangzhou city from Urumqi on July 10 and was later driven to Shaoxing by his friends.

He was informed by the Xinjiang Disease Control and Prevention Center on Tuesday that he needed to be tested for COVID-19. He then drove to a hospital in Shaoxing for a nucleic acid test the next day and tested positive for the virus. 

The man and eight others who had close contacts with him are now under quarantine, the Zhejiang Health Commission said.

It's so far unclear if the case in Zhejiang is linked with the newly-reported cases in Xinjiang.