Sydney's lockdown has been extended by another month as Covid cases continue to rise.

Australia's largest city has been under stay-at-home orders since late June due to an outbreak of the Delta variant.

More than 2,500 people have been infected in Sydney's worst outbreak this year.

New South Wales - of which Sydney is the capital - reported 177 new cases on Wednesday, the most in a day since March 2020.

Premier Gladys Berejiklian said it was not possible for the city to exit lockdown on Friday as had been planned.

She announced further curbs on movement - including a 10km (6.5 miles) limit on essential shopping.

Victoria and South Australia both came out of lockdowns on Wednesday, after containing smaller outbreaks.

Sydney's five million residents had enjoyed a fairly normal lifestyle this year until the outbreak happened.