The area had suffered days of heavy rain triggered by the lingering influence of tropical storm Nock-Ten.
Scores of hilltribe people, mainly Karenni, were seeking refuge at the shelter after fleeing armed fighting in Burma. Altogether 346 households have been affected. One person of unknown nationality was reported missing.
The seven bodies were retrieved and subjected to verification of death and identification in neighbouring Tak before they were cremated in a ceremony organised by survivors and Thais of Karenni descent.
Two communities were accommodated at the shelter, which was located between Mae La-oon and Sob Moei districts. Initial rescue attempts and medical assistance were made difficult by the high waters and raging currents.
Four Thais, including three children, were hurt after they were swept away by torrential currents.
In Nan, more than 400 homes in Tha Wang Pha district were submerged under two metres of floodwaters while landslides and falling trees blocked a main road, marooning villages. Many homes located along a large creek were inundated, leaving many residents stranded.
