One of the largest shopping centres at e-commerce hub Hangzhou , capital of eastern Zhejiang province, was temporarily locked down for several hours during China’s Ching Ming Festival amid concerns over possible infected travellers from Covid-19-hit Shanghai . Around 1,000 people, including customers and employees of Raffles City Hangzhou ’s shopping centre, were locked down on site from 8pm on Tuesday to 2am on Wednesday after it was found that two female travellers from Shanghai spent some time at the property, according to information provided by employees of five tenants and some shoppers who were there, as well as related posts on Chinese social media. The lockdown illustrates how shopping centres have become high-risk locations for potential Covid-19 transmission in the city of 12.2 million residents, as the Chinese government attempts to control new outbreaks across the mainland. Shanghai recorded 17,007 new Covid-19 infections on Wednesday , as its local government kept the city of 25 million residents locked down for a second week. During this year’s three-day public holiday from April 3 to 5, Hangzhou recorded 16 asymptomatic cases, according to recently released local government information. It also said several cases of Covid-19 were reported at the shopping centres of InTime City and Hangzhou Mixc. “The authorities conducted a round of nucleic acid testing at Raffles City Hangzhou, and the process was completed by the early morning of April 6, 2022,” a spokeswoman for the property said in emailed statement on Wednesday. “Deep cleaning and disinfection of the property was also completed last night. We will continue to monitor the situation closely and take the necessary precautionary measures in line with guidelines from the authorities.” Raffles City Hangzhou, located in Qianjiang New Town in the heart of the city’s central business district, is owned by Singapore-based CapitalLand Group. The multipurpose complex spans 116,000 square metres, which includes the shopping centre, office towers, luxury hotels and residential buildings. “I was a bit concerned about getting infected,” said Kiko Zhu, a finance professional who had dinner at Raffles City Hangzhou on Tuesday. Zhu said the quarantine medical observation form handed to her at 2am on Wednesday states that she undergoes a seven-day home quarantine until April 12. Local government authorities said there was one asymptomatic case who had visited both Hangzhou Mixc and Raffles City Hangzhou on Tuesday. Hangzhou Mixc, also located in Qianjiang New Town, is 40 per cent-owned by Hong Kong property giant Sun Hung Kai Properties , while InTime City is controlled by Yintai Group and Alibaba Group Holding , owner of the South China Morning Post . A Hangzhou government notice released on Wednesday said the asymptomatic Covid-19 case from Shanghai spent more than nine hours inside Raffles City Hangzhou’s shopping centre. Amanda Yu, a local resident who visited both Hangzhou Mixc and Raffles City Hangzhou on the same day as the Shanghai traveller, said she plans to report her itinerary to her residential compound after getting the results of a Covid-19 test. “I am more concerned about being quarantined,” said Yu, adding that “infection seems like a low chance”. Covid-19 pandemic prevention and control efforts in Zhejiang remain in force, according to a government statement citing Wang Hao, the province’s Governor. Companies based in the provincial capital, including e-commerce giant Alibaba, also remain on high alert, according to two Alibaba employees who declined to be identified. They said self-testing kits were provided to Alibaba employees late on Tuesday at the firm’s headquarters.