A local resident, Nguyen Quang Nam, said that hundreds of families in his Rong Vong Village, Luong Son District have faced the threats for many years.

"Thu Lao Hill has started to show cracks since 2015," Nam said. "The cracks are 30 metres in length and over half a metre wide and can be seen at the height of between 50-60 metres on the hill. Since the cracks appeared, landslides have occurred with stones and soil dropping onto our residential areas."

The man shares that they are most worried when it rains.

"The landslides seemed to have occurred more often over the past three years," he said. "A large amount of soil and stones fell onto my garden following rain last year."

Another resident, Hoang Bich Diep, said that her family and neighbours have lived here for generations but now are facing threats of losing their homes to landslides.

"We have to run out whenever we hear strange sounds from the hill," Diep said. "We always live in constant fear during the rainy and flood season."

Nam, Diep and other families in the village have reported the problems to local authorities and are waiting for a proper solution from the government.

According to the Lam Son Commune People's Committee, 144 households with nearly 600 people in Rong Vong Village live by Lu Thao Hill. The hill is prone to landslides. The villagers have been evacuated seven times during rains and landslides from the hill.

"This is only a temporary measure," the official said. "We're working with a company to build an anti-landslide project for this area and will propose it to the provincial people's committee within this year."