Part of a five-storey residential building in Dahui village of Wencheng County collapsed yesterday, burying nine persons from two families.
Five bodies were pulled out yesterday, bringing the toll to seven, officials said.
A 63-year-old woman was pulled out from the debris at late last night and another female survivor was rescued at today. Both have been rushed to hospital for medical treatment, state-run Xinhua news agency reported.
With the help of eight cranes and excavators, more than 400 paramilitary officers, fire fighters, township officials and medical workers have been carrying out rescue operation.
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"We have to work very carefully because the wreckages of the ruined building are joined to homes still standing."
One of the adjacent homes, he said, was already damaged with a big hole in its outer wall. A total of 58 people living nearby were evacuated to safe places.
Local authorities have launched an investigation into the cause of the building collapse.