China school tests security measures after knife attack

AFP - Getty Images

Students and a teacher try to stop a mock attacker during a security drill at a primary school in Jinan, in eastern China's Shandong province on Dec. 18, 2012.

AFP - Getty Images

A guard tries to stop a mock attacker during a drill at a primary school in Jinan on Dec. 18, 2012.

A school in eastern China's Shandong province tested its security procedures Tuesday, four days after a knife-wielding attacker stabbed 22 students at a different school in Henan province.

China has seen several violent attacks against children over the past two years, including a spate of five incidents in 2010 that killed 15 children and two adults and wounded more than 80. -- Agence France-Presse

EDITOR'S NOTE: Images taken on Dec. 18, 2012, and made available to NBC News today.

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