More than a dozen people have been killed in a serious traffic accident in a motorway tunnel in China, state news reported on Wednesday. Fourteen people were killed and 37 injured when a bus collided with the tunnel wall on the G59 motorway in the northern province of Shanxi on Tuesday afternoon, the state news agency Xinhua reported. It was initially unclear what caused the collision. The scene of the accident was near the city of Linfen, around 360 kilometres from the north-western city of Xi’an, home of the famous Terracotta Army. According to Chinese state television, there were 51 people …