Thailand has expanded its coronavirus vaccine rollout to children between 12 and 17 years old.
The expansion to those younger than 18 comes as the government plans to resume face-to-face classes at schools from November.
Voluntary inoculations of children with the Pfizer-BioNtech vaccine began on Monday.
At a school in Bangkok, 400 high school students were vaccinated after medical staff confirmed their health conditions and parental consent.
A 17-year-old girl said she felt a little pain, but not much. She also says she hopes to see her friends at school and go back to the life she had before the pandemic.
Other Southeast Asian nations such as Malaysia, Singapore and Indonesia are already conducting vaccinations for children aged 12 and older as school classes resume and to reduce chances of infection and serious symptoms.