KUNMING - Three people were killed and another four injured as a house collapsed around midnight Friday in southwest China's Yunnan Province, rescuers said Saturday.

Fire fighters with the Weixi Lisu Autonomous County received the report early Saturday morning saying seven were buried in the house collapse in the village of Luoyi, Badi Township, said a statement issued by the county's fire department.

When the rescuers arrived, five had been saved by villagers. One of them died at the scene. The injuries of the others were not life threatening, said the statement.

The fire fighters pulled the other two trapped out of the debris around 2 a.m., who were both dead later.

An investigation into the case is under way.