Four local coronavirus cases have been reported in New South Wales on Sunday.
Two were reported in the 24 hours to 8pm on Saturday while two were reported overnight.
Two attended Westfield Bondi Junction and spent time in Wollongong, while two are close contacts of previously reported cases and had been in isolation.
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Premier Gladys Berejiklian said the continuous spread of cases meant mask requirements would be ramped up.
Previously, masks had only been mandatory on public transport in the Greater Sydney and Blue Mountains areas.
That is now being extended to include the Wollongong and Shellharbour council areas from 4pm.
In addition, masks will be mandatory in all public indoor venues in seven Local Government Areas
The mask mandate includes retail, theatres, aged care facilities and for front-of-house hospitality staff.
Berejiklian said the rules could be taken further if cases continue to emerge in the community.
“As we heard in previous days on a few occasions it has been a fleeting exchange,” Berejiklian said.
“[It] is extremely contagious and some people are spreading it more than others and what we want to avoid at this stage is a super spreading event.”
It comes after the number of exposure sites grew significantly overnight.
Thirteen new venues were added to the list, amid fears “fleeting contact” would increase transmission.
Anyone who attended the following must call NSW Health seek testing immediately and isolate until further advice:
- Fitness First Pitt Street Platinum in Sydney on Wednesday, June 16 between 12.30pm-1.15pm.
- Fitness First Bond Street Platinum in Sydney on Thursday, June 17 between 3.30pm-4.30pm.
- Baby Bunting in Shellharbour on Friday, June 18 between 4.30pm-5.15pm.
Anyone who attended the following is a close contact and must call NSW Health, get tested and isolate for 14 days regardless of result:
- Salvos Store in Tempe on Wednesday, June 16 between 2pm-3pm.
Anyone who attended the following is a casual contact and must test and isolate until a negative result is returned.
- Aldi in Bondi Junction on Monday, June 14 between 9.50am-10.10am.
- Coles in Bondi Junction on Monday, June 14 between 10am-10.30am.
- Chemist Warehouse Pitt Street in Sydney on Tuesday, June 15 between 12.30pm-1pm.
- Square Sandwiches in Sydney on Tuesday, June 15 between 2.45pm-3.15pm and on Wednesday, June 16 between 2.45pm-3.15pm.
- Salvos Store in Tempe on Wednesday, June 16 between 9am-10.10am.
- Chemist Warehouse in Bondi Junction on Wednesday, June 16 between 5.30pm-6pm.
- Chemist Warehouse Oxford Street in Bondi Junction on Wednesday, June 16 between 5.30pm-6pm.
- Woolworths Metro Pitt Street Mall in Sydney on Wednesday, June 16 between 12.20pm-12.40pm.
- Bakers Delight near Wynyard Station in Sydney on Wednesday, June 16 between 12.20pm-12.40pm.