South China Morning Post
Metal barriers blocked streets, police addressed people through loudspeakers, and some residents in the Hong Kong area of Yau Ma Tei faced a night sealed off from the rest of the city, after an “ambush-style” Covid-19 lockdown on Tuesday.
People living in blocks numbered 9-27 on Pitt Street, and Shun Fung Building on 3 Tung On Street, were taken by surprise, with the government acting at the last minute to avoid giving residents advance warning through leaks in the media.
The lockdown, which began at 7pm, was expected to end at 6am on Wednesday, and those in the area had been told to stay inside until they had been tested for Covid-19. But officers also said people should be prepared to miss work, because they were unsure of whether testing would finish on time.