Hong Kong runners tell of Boston Marathon carnage
Student from mainland reported to be in a coma after horrific blasts as witnesses recall chaos as rescuers try to reach the wounded

A Hong Kong runner in the Boston Marathon has told of the chaotic scenes as rescue workers tore away barriers to get to those injured by the twin blasts.
Simeon Jupp, from Hong Lok Yuen, finished the 42-kilomere course and was still near the finishing line when the first bomb went off.
Jupp, 49, who has lived in Hong Kong for seven years, said: "There was one large explosion no more than 200 metres from where I was standing.
"It was instantly clear from the amount of debris in the air that it was either a terrible accident or a bomb. Seconds later there was another explosion a few hundred yards away."
He said it took a while for what had happened to register. But the horror soon became clear.