Aftermath of China school attacks

29 March 2009: People gather outside the gate of Zhongxin kindergarten in Taixing, Jiangsu province, where a class of four-year-olds were attacked. A knife-wielding man slashed two dozen children in what an expert said was a copycat crime inspired by two other recent knife attacks on pupils at Chinese schools
Photograph: Alexander F. Yuan/AP

A police officer enters a building where students were attacked at Zhongxin kindergarten
Photograph: Alexander F. Yuan/AP

One of the victims is transferred into a hospital ward after surgery
Photograph: Alexander F. Yuan/AP

A mother of one of the wounded children cries outside the intensive care ward
Photograph: Alexander F. Yuan/AP

28 March 2009: Police arrest Chen Kangbing, 33, the man blamed for a separate attack in Leizhou, in south China's Guangdong province. Fifteen students and a teacher were wounded. Chen was a teacher who had been on sick leave since 2006 for mental problems
Photograph: KPA/Zuma/Rex Features

A victim in hospital after the Leizhou attack
Photograph: AFP/Getty Images

23 March 2009: Police guard the entrance of a primary school where a man stabbed six school children to death and injured another seven in Nanping, Fujian province. The man attacked the children just before school began. Police arrested Zheng Minsheng, 41, described as a middle-aged former doctor who had been dismissed from his job
Photograph: China Daily/Reuters

Zheng Minsheng is sentenced to death on 8 April for the Nanping school killings. He was executed on 28 April
Photograph: AFP/Getty Images

A security guard stands at the entrance of a school in Nanjing, Jiangsu province, amid fears of copycat knife attacks. There have been public calls for more measures to protect students in a country where many couples only have one child
Photograph: Sean Yong/Reuters

Police officers demonstrate with a teacher the use of defensive steel forks at a school in Beijing
Photograph: Reuters