Hong Kong democracy protest unstable after talks postponed

Police in Hong Kong have arrested 19 people, including suspected members of triad gangs, accused of attacking pro-democracy protesters.

Police officers deny claims that they have colluded with those who used violence against the demonstrators.

The incidents took place in a densely packed area of Hong Kong called Mong Kok, where protesters have maintained a sit in for most of the past week.

China Editor Carrie Gracie has been with the protesters this evening.