Authorities in Hechi city received an information during the wee hours that a two-story building in Fude village has collapsed in a landslide.
There were 15 households at the site. People saw one of the buildings was almost buried by rocks and soil, state-run Xinhua news agency reported.
Rescuers have recovered six bodies including that of the building's owner.
Some local villagers, who were sleeping when the accident took place, woke up by a loud noise, mistaking it as fireworks at first.