PHITSANULOK, 27 December 2013 (NNT) – Chilly weather remains in the upper part of Thailand, with the temperature reading at Phu Soi Dao National Park in Phitsanulok dropping to minus 2 degrees Celsius.

With the sub-zero temperature observed since early Thursday, frost has formed on a large swath of turf in the national park, providing fascination for a big crowd of tourists.

Read more: NNT