This is the terrifying moment a tree suddenly collapsed on the top of a middle school boy.<br /><br />The CCTV video, captured in Chifeng City in northern Inner Mongolia on September 22, shows a tree suddenly falling down and striking onto a boy about to cross the road with three other people.<br /><br />The boy suffered fractures to his leg and he was treated in hospital, reports said.<br /><br />The reason of the incident was still unknown.
