Bangkok, Jan 6 (TIWN) Thailand's Ministry of Public Health on Thursday raised its Covid-19 alert level from three to four in response to the rapid spread of the Omicron variant in the country.

The change, from level three to four, sets a pretext for possible measures that could follow, such as closing high-risk areas and placing restrictions on domestic travel or public gatherings, said Kiattiphum Wongrajit, permanent secretary of the health ministry.