Xi'an high tech building collapse accident found no casualties and surrounding personnel were evacuated. Xi'an high tech building collapse accident was not found casualties, the surrounding personnel were evacuated. Reporters today (July 30) from the high-tech zones CMC learned that yesterday afternoon in Kam industry road, a dragon's science and technology park a building on the north side of the two storey podium collapse, has identified no casualties. But because of the leakage of natural gas, causing more than 480 businesses and residents in the surrounding gas affected. ...