Ma Zongjin, director of the National Wenchuan Earthquake Expert Committee, speaks at a press conference in Beijing on Thursday, September 4, 2008.
There might be "quality problems" with some school buildings which were damaged during the catastrophic earthquakes in southwest China's Sichuan Province in May 12, an official acknowledged on Thursday.
Ma Zongjin, director of the National Wenchuan Earthquake Expert Committee, said this could happen due to a rush of construction of school buildings in recent years.
