A strong cold air mass is moving southward and will hit the northern provinces of Vietnam on Jan. 11, according to the National Centre for Hydro-Meteorological.

As a result, the temperatures in the regions remain low, at under 13 degree C.

The cold spell will bring light rain in the northern provinces . There will be strong northeastern winds in the Gulf of Tonkin and the north and central areas of the East Sea including Hoang Sa (Paracel) Islands .

In some northern mountainous areas, buffaloes and cows have died from cold./.