Two people have been killed and 21 others injured in an attack at a hospital in south-western China. Police in Zhenxiong County, in the south-western province of Yunnan, said on Tuesday that a man from a local village had carried out the attacks with a knife shortly before midday (0400 GMT). No further information was available on possible motives for the attack, nor on the identities of the victims. China’s state news agency Xinhua had previously reported 10 victims, without specifying the number of killed and wounded. Videos circulated on the Chinese social media platform Weibo showing the a…