Haze from forest fires on the Indonesian island of Sumatra and southern provinces has been covering all 10 districts of Trang province.

Apart from the forest fire on Sumatra Island, fires in the peat swamp forests in the neighbouring provinces of Nakhon Si Thammarat and Patthalung have also caused smog in Trang to be thicker, Amnuay Chantarat of Trang disaster prevention and mitigation office said on Sunday.

Read more: NNT