Shanghai residents photograph cherry blossoms through the gates of a closed park. More than 100 public parks have been shut in Shanghai due to the latest Covid-19 outbreak. Photo: IC Photo

A warning cordon is placed around the Global Harbor shopping mall in Shanghai on Sunday as the area was locked down due to Covid-19. Photo: VCG

A worker delivers daily supplies to locked down residents in Shanghai on Saturday. Photo: VCG

A man checks for tickets at Shanghai Railway Station on Sunday. The city suspended travel from bus terminals on Monday to prevent the spread of the virus. Photo: IC Photo

A supermarket shelf lies empty on Sunday in Shenzhen, South China’s Guangdong province, after people flocked to the market to store up on supplies in preparation for a city-wide lockdown starting Monday. Photo: IC Photo

A worker arranges orders in a McDonald's restaurant in Shenzhen on Sunday. The city suspended dine-in services in restaurants and closed entertainment venues on Saturday. Photo: VCG

A resident walks past a locked down community in Shenzhen on Sunday. Photo: VCG

A Shenzhen resident carries her computer on Sunday night to work remotely during the upcoming lockdown. Photo: IC Photo

People queue to get Covid-19 tests in Shenzhen on Thursday. The city reported 86 cases on Sunday and ordered a third round of mass testings on Monday. Photo: VCG

People stand in line for Covid-19 tests in Shanghai on Saturday. The city reported 41 new local cases, 128 asymptomatic infections and 16 imported cases on Sunday. Photo: VCG