Chief Executive CY Leung says he was not merely speculating when he told a television interviewer on Sunday there are external forces involved in the Occupy Central movement, adding that he has a duty to know such matters as head of Government.  

Speaking to reporters before attending an Executive Council meeting today, Mr Leung said any government must deal with such matters. The questions on whether to disclose related evidence to the public and how to do so would be considered at the appropriate time.  

He said Hong Kong, being a part of China, is also a highly open city with a complicated international environment, and he believed society is aware of the presence of external forces.