Hong Kong's public broadcaster RTHK dropped a 24-hour BBC World Service channel from its airwaves today, replacing it with state radio from China. <br/><br/>According to RTHK China National Radio, a state-run outlet carrying no sensitive or critical reporting on China would be broadcast on its own RTHK channel. Amen Ng, a spokeswoman for RTHK, said there were no political considerations in the decision and said the Chinese broadcaster would enhance cultural exchanges. <br/><br/>Critics said the move is a sign of encroaching Chinese control in the former British colony. They said the move is in line with a gradual mainlandisation of Hong Kong that has seen Beijing's creeping influence in many sectors, including local government, law enforcement, politics, education, the judiciary, and the media.