Tianjin began providing novel coronavirus vaccines on Thursday for foreigners aged 18 and above in the city.

They can make appointments through their employers or designated institutions, local authorities said.

The appointments for voluntary vaccination are open to foreigners who work, study or live in Tianjin. Inactivated vaccines will be used, and two doses are required within two to four weeks. The vaccine may vary according to market supply, the authorities said.

Those who have joined China"s social medical insurance can get the vaccination free of charge by presenting an insurance document at the vaccination site. Those who have not should pay by themselves.

After making an appointment, foreigners should receive their vaccinations at the arranged time and site after presenting their passports or other identity documents, and their valid stay or residence permits. Vaccination sites have been set up in all districts of Tianjin.