Four persons were injured and another was missing in the flood which struck at around 6 AM (local time) in Puge county's Gengdi village in Liangshan Yi autonomous prefecture, state-run Xinhua news agency quoted an official as saying.
Heavy rains also caused a landslide in the village.
So far the flood has affected 577 people of 157 households and destroyed 71 houses. Several roads and bridges were also damaged.
More than 1,000 people were dispatched to search for the missing people.
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