There has been snowfall on Cha Mountain in Lang Son Province as a cold snap hit parts of the northern region this week.
The temperature on the 1,541-meter mountain in Mau Son Commune plummeted to -1 degree Celsius Thursday.
Frost covered the grass and hotel fences in the Mau Son tourism area where many tourists have booked rooms to see the snow.
Lang Son gets snow once every few years.
The Cha range, near the Chinese border, consists of dozens of mountains with pristine forests and is uninhabited.
According to the Central Hydrometeorology Forecast Center, the cold snap will last for a few days and also affect several parts of the central and southern regions.
Chilly weather has enveloped Hanoi and several northern provinces, with temperatures dropping to 7-10 degrees Celsius, and to 3-5 degrees in mountainous areas.