In the city, groups of 20 children and adults tested positive for Covid-19. Of these, the Omicron strain was confirmed in two.
"The first two cases confirmed in Tianjin were a 10-year-old girl and a 29-year-old woman working at an after-school center. Both were infected by the omicron variant… Those infected include 15 students from 8 to 13 years old, the after-school center staff member, and four parents," the message reads.
Officials announced the spread of the virus and began mass testing of all 14 million people. It will last two days.
Several metro stations on the two lines have been closed in the city to try to prevent the virus from spreading further.
As it was reported earlier, an outbreak of Omicron coronavirus infections in the US caused a breakdown in basic functions and services. First responders, hospitals, schools, and government agencies have employed an all-hands-on-deck approach to keep the public safe, but they are worried about how much longer they can keep it up.
Meanwhile, European countries are stepping up hospital capacity amid the spread of the Omicron strain.