Amateur video of violent demonstrations in Hong Kong on Tuesday captures the moment when a policeman points a pistol at a black-clad protester and fires a round, after which the young man falls to the floor.<br /><br />The footage, taken by students during a chaotic melee in the Tsuen Wan area of the city, is the first known instance of a protester being shot with live ammunition during weeks of clashes between police and pro-democracy campaigners.<br /><br />Police confirmed that an officer opened fire at a protester, saying he was acting in self-defence.<br />
