Shanghai authorities have put up fences outside residential buildings in a bid to curb a growing cluster of COVID-19 infections

It’s sparking a fresh outcry over the nation’s lockdown measures, which have forced much of the city’s 25 million people to stay indoors.

The two-metre high fences have prompted a series of complaints from local residents, many have been unable to access essential items or care for weeks.

One user took to the social media platform, Weibo to vent their frustration about the new measures. They asked “isn’t this a fire hazard?”

Meanwhile, Beijing will require everyone living or working in COVID-affected areas to take three tests this week.

Authorities have placed dozens of buildings under lockdown measures in the capital, which reported 22 new cases on Saturday.

It comes as retail workers continue to work long hours and sleep at work to keep residents fed.

After spending the night in a sleeping bag, Wei prepares over 3,000 orders of vegetables, meat and essentials to send out to locked down residents.

Around 40 staff are believed to be working working long days to fill online orders from neighbouring compounds.

The U.S. recently ordered non-essential government staff to leave the city amid the ongoing restrictions.