Tourist attractions, parks, museums and shopping malls in Shanghai are on high alert over prevention and control of COVID-19 and have tightened measures after scattered cases have been reported in some domestic cities.

Visitors from outside Shanghai or returning to the city to attend a guqin concert on Friday afternoon at Longhua Temple in Xuhui District were required to show their negative nucleic acid test report to gain entry.

All attendees were also asked to show both their travel history for the past 14 days and health QR code.