Authorities in Chiang Mai have converted the international exhibition and convention centre into a field hospital, in order to deal with the increasing Covid-19 cases in the province.
The authorities have arranged 280 beds -- 140 beds each for male and female patients.
The field hospital will be available from Friday.
On Thursday, the Centre for Covid-19 Situation Administration said that cases from Bangkok's Thong Lor cluster have been found in 20 provinces between March 22 and April 7.
On Wednesday, the Committee of Communicable Diseases of Chiang Mai decided that everybody travelling from the five red-zone provinces -- Bangkok, Nonthaburi, Samut Prakan, Samut Sakhon and Nakhon Pathom -- must register on the CMChana application and isolate themselves for 14 days.
After the Covid-19 clusters emerged from several entertainment venues in Bangkok and its vicinity, Chiang Mai has also decided to close clubs, pubs, karaoke bars and other entertainment establishments for seven days from Friday.
Venues that were open on Thursday were required to provide the committee with the names and phone numbers of all patrons.
The province has also decided to prohibit the serving of alcohol at all kinds of restaurants for seven days from Friday.