Stricter measures in Hong Kong will come into effect from midnight on Wednesday making it mandatory to wear face masks in all indoor public areas.
Anyone flouting the rules could face a HK$5,000 (£509, $645) maximum fine.
A number of venues including gyms and entertainment centres will remain closed until 28 July. A ban on dining in restaurants after 6pm will also be in place until then.
Food and Health secretary Sophia Chan-Siu-chee said: “This is the most critical time for Hong Kong. We ask citizens to be patient and stay at home as much as possible.”
The city has seen a spike in cases in recent weeks. On Tuesday, 61 infections were confirmed and two people died.