Two rocks together weighing about 5 tons rolled into local people's houses and spoiled their properties. Other hundreds of households living at the foot of the mountain are worried as heavy rain has lasted for more than a week, creating a higher risk of landslides. Meanwhile, Nguyen Van Duong's house was also hit by the rocks causing property damage. This is not the first time rock erosion has occurred in Ba Hon. A few years ago, two people were killed, one injured by heavy rocks weighing dozens of tons that had suddenly rolled down from the mountain.