At least four people were injured Wednesday in a gas outburst at an office building in south China's Guangxi Zhuang Autonomous Region. Compressed gas gushed out of a container at about 5 p.m. on the second floor of a 20-story office building in Nanning, the regional capital. The building's air-conditioning equipment and fire-fighting facilities were located on the second floor, and the gas was likely carbon dioxide, Wen Shourong, vice mayor of Nanning, told a Xinhua reporter at the scene. The outburst smashed windows and destroyed the ceiling of the second floor of the building. All the injured were hospitalized. The cause of the accident is being investigated.
