A pupil receives medical treatment in a hospital in Aksu City, northwest China's Xinjiang Uygur Autonomous Region, Nov. 29, 2010. Seven children were severely injured Monday when about 100 students fell on top of each other while descending stairs at No. 5 Primary School in Aksu City. [Xinhua]

Photo taken on Nov. 29, 2010 shows No. 5 Primary School in Aksu City, northwest China's Xinjiang Uygur Autonomous Region. Seven children were severely injured Monday when about 100 students fell on top of each other while descending stairs at No. 5 Primary School. [Xinhua]