Several videos on social media showed customers yelling and pushing each other in an attempt to escape the building before the doors were closed.
CNN reached out for comment to Ikea's press office in Shanghai.
In a press briefing Sunday, Zhao Dandan, deputy director of the Shanghai Health Commission, said the store and affected area would be under closed loop management for two days. The people in the loop must undergo two days of quarantine and five days of health surveillance.
On Monday, Shanghai city health authorities reported six locally transmitted Covid 19 cases, of which five were asymptomatic.
In Shanghai, China's financial capital, which is home to 25 million people, was locked down for two months earlier this year, leading to widespread public anger as residents reported difficulty ordering daily essentials, including food and medicine. The lock down was imposed under China's rigid zero-Covid policy, which relies on mass testing, extensive quarantines and even confinement of entire cities to prevent a resurgence of the disease. The Chinese government uses a color-based health code system to control people's movements and to control the spread of the disease, because they're trapped in China's latest Covid lockdown. People in many Chinese cities must show a green health QR code to ride public transport and enter shopping malls, gyms and restaurants. The system logs their whereabouts and whether they have been in contact with a confirmed Covid 19 case.Those whose health codes are red face almost certain confinement to quarantine facilities. The public is frustrated with the stringent rules as the economy struggles to adapt to the disruption, and so snap lockdowns have become common in the country. More than 80,000 tourists were stranded last week in the popular Hainan resort after authorities announced measures to stem the outbreak of the disease.