NSW Premier Gladys Berejiklian says she’s been forced to impose the “harshest restrictions Australia has ever seen” as her state’s COVID-19 crisis continues to deteriorate.

Yesterday, Ms Berejiklian announced a four-week extension of Greater Sydney’s lockdown, and a raft of new rules affecting shopping, schools, singles and construction.

But just 24 hours later she was forced to go even further after the state recorded 239 new COVID-19 cases — the highest number of daily infections ever seen in NSW.

Most of the new restrictions affect people living in the Sydney local government areas (LGAs) of Fairfield, Canterbury-Bankstown, Georges River, Liverpool, Campbelltown, Cumberland, Parramatta and Blacktown, which have been identified as particularly high risk for COVID transmission.

Here’s a breakdown of the new rules.

Less movement, more masks

Residents in the eight LGAs of concern are now even more locked down.

From 12:01am tomorrow, people in those areas must not travel more than 5km from their home, and must wear face masks while outside their residences.

Ms Berejiklian said there were too many people in these areas having contact with others outside but not wearing masks.

“If you step foot outside your household, you now need to wear a mask at all times,” she said.

This map shows where the affected LGAs are in relation to other parts of the lockdown area.

The new 5km rule applies to all movement.

It means you can’t travel further than that to go to the shops, or exercise.

The only exceptions are if you need medical care, are getting vaccinated, are an essential worker or need an essential item which is not available locally.

If you live alone, and you planned to take advantage of the new “singles bubble” announced this week, the person you pair with must live within 5km of your home.

Ms Berejiklian warned more LGAs could be subjected to these new rules depending on infections over the coming days.

Police will also be cracking down ever harder on compliance.

The fine for not wearing a mask has been increased from $200 to $500.

Shopping must be done locally

In other parts of Greater Sydney, the Central Coast, Blue Mountains, Wollongong and Shellharbour, you can only shop for essential goods within your LGA or 10km from your home.

Again, the only exception to this is if the item is not available locally.

Ms Berejiklian said people were still travelling long distances to do shopping and transmission was occurring in shops.