In Hong Kong, more than a dozen flights were cancelled today as thousands of pro-democracy activists blocked routes to Hong Kong's airport. This came a day after protesters and police fought pitched battles in some of the worst violence seen in the city since unrest began three months ago.<br />'' <br />'' Earlier, operators of the Airport Express train suspended services after the station was besieged. Black-clad protesters – hiding from CCTV cameras under umbrellas – built barricades at the bus terminus and attempted to stop traffic on the main road leading to the facility.<br />''  <br />''<br />''Today's action is the latest in three months of increasingly violent protests sparked initially by opposition to a proposed law that would have allowed extraditions to mainland China, but which morphed into a broader anti-government movement.<br />