At noon on December 4, Lam Dong provincial authorities decided to close Prenn Pass, banning vehicles from traveling in both directions due to large-scale landslides.
According to initial information, due to prolonged heavy rain, a large amount of rock and forest trees from the positive slope tens of meters high collapsed, burying the surface of the pass.

The landslide location is near Datanla Waterfall Tourist Area, in Xuan Huong - Da Lat ward.
At the scene, rocks and forest trees from the elevated slope continued to move, at risk of collapsing below.
A construction worker and incident handling worker said that this landslide site was located far from the Prenn Pass landslide on November 17.

Regarding the landslide issue, at noon of the same day, the authorities speed up the movement of soil and rocks on Mimosa Pass (Xuan Huong Ward - Da Lat) to soon open to traffic. The repair of the problem on Mimosa Pass is expected to be completed by the afternoon of the same day.

Prenn Pass and Mimosa are 10-11km long, both located on National Highway 20, playing an important role in connecting trade between Da Lat and the southern provinces.