A violent brawl broke out on an MRT train in a Hong Kong station between anti and pro-government supporters.<br /><br />An old man was among those who came to blows with young black-clad activists.<br /><br />Activists claimed they were attacked first by the government supporters and only acted in self-defence.<br /><br />A fire extinguisher was also released in the train carriage.<br /><br />Prince Edward station was closed because of the incident.
