The decision was made by the communicable disease committee of Buriram province on Friday.
The order takes effect from Saturday. The committee classified as high-risk, red-coded provinces with over 50 confirmed cases, such as Samut Sakhon, Rayong, Chonburi, Bangkok, Nakhon Pathom, Samut Prakan, Trat, Samut Songkhram, Nonthaburi, Pathum Thani and Chanthaburi.
As of Friday, Buriram was a green province, without any case.