Temperatures at the top of Fansipan in the northern province of Lao Cai have dropped to below zero degrees centigrade, leaving it covered in frost.
The phenomenon happened in the area on October 30 and 31 has been seen quite rare at this time of the year, surprising many visitors.
The frost made the mountain-top complex look like a fairy tale.
Lots of visitors took photos with the stunning moment.
By this morning, the temperature in the area increased to seven degrees, causing the ice to smelt. The mountain peak has then been covered by cloud.
In April this year, Fansipan also saw a frost following the sharp temperature fall.