|A close look at frost on the top of Mount Phja Oac in Cao Bang. (Photo: VNA)
At a height of 1,930m above sea level, Phja Oac is the roof of Cao Bang. Frost and ice are normal phenomena here in winter.
Also on Sunday the National Centre for Hydro-Meteorological Forecasting predicted the current cold spell will continue to affect other parts of the central and south central regions.
The areas from Quang Binh to Thua Thien-Hue will see rain, showers and thunderstorms, with possible whirlwinds, lightning, hail, and strong winds until Monday.
Thanh Hoa province will see the lowest temperatures of 8-11 degrees Celsius, even zero degree Celsius in the high mountains with a high possibility of frost and snowfall.