Some residents under lockdown in Shanghai say they are running out of food, amid the city's biggest-ever Covid outbreak. Residents are confined to their homes, banned from leaving for even essential reasons such as grocery shopping. Nearly 20,000 cases were reported on Thursday in China's biggest city - another near-record high. Officials have admitted the city is facing "difficulties" but say they are trying to improve this. But public anger is also being stoked by other drastic measures - such as the removal of children from their parents if they test positive.