A three-storey building collapsed on Thursday morning in the city of Wenzhou, East China's Zhejiang Province, killing four and injuring one.

The local government source said the over ten-square-meter wall inside the building, located in the city's Longwan District which was being demolished, suddenly collapsed at about 10:24 AM buried five people who were resting on the ground floor.

Four were killed on the spot and another one was rescued and then hospitalized, who is in a safe condition, the source said.

Investigation into the cause of the accident is underway.

(Xinhua News Agency October 27, 2006)