+GRAPHIC VIDEO+<br /><br />A coach transporting 33 middle school teachers flipped over on a motorway in China, killing three.<br /><br />The video, captured in Qingyuan City in southern Guangdong Province on June 23, shows the out-of-control packed coach sliding along the road and tipping over at the entrance of a tunnel.<br /><br />Teachers in the coach can be seen being flung from the side windows and crushed underneath the vehicle.<br /><br />Nearby people run to rescue the injured passengers.<br /><br />Three people were killed and nine were injured, reports said.<br /><br />The cause was being investigated.
