Nine inner-city tower blocks, home to 3,000 people, have been placed in "hard lockdown" after a surge in coronavirus infections in Melbourne, Australia.
Residents have been told they are not allowed to leave their homes and police have been stationed in the area after more than 27 cases were recorded among 12 households in large public housing towers.
They were among a record number of cases (108) found in a single day in the state of Victoria on Saturday, while a further 74 were discovered on Sunday.
The measure, announced by state premier Daniel Andrews on Saturday, is a response to the outbreak, which has "genuinely explosive potential" for the spread of coronavirus, the state's chief health officer, Brett Sutton, said.
Mr Daniels said: "This is not going to be a pleasant experience for those residents but I have a message for those residents: this is not about punishment but protection.