Former Hong Kong chief executive Leung Chun-ying expressed his opposition to the radicals' violent acts and talked about the seriousness of the protesters' actions in an interview with CGTN.

Leung noted that the Central People's Government's Liaison Office in Hong Kong is not just an ordinary government organ but is a representative office of the central government, part of which are the authorities of central government under the basic law. 

He stressed that Sunday's violent acts are very serious, which disrupted public order, insulted national dignity and challenged the central government's exercise of sovereignty over Hong Kong. 

The Hong Kong Special Administrative Region government, especially the police, must seriously follow up and bring those "rioters" to justice. 

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As for the general public, Leung hoped they would realize how serious the matter is and be aware of the long-term negative consequences if such unreasonable behaviors go on. 

He mentioned that until now, none of the opposition parties or their members have come out to condemn such violent actions.

The former Hong Kong chief executive appealed to general public of Hong Kong to distance themselves from these violent actions and hoped that the public and the international community will take a stand and condemn such violent acts. 

The Liaison Office of the Central People's Government in the Hong Kong Special Administrative Region (SAR) on Sunday strongly condemned the behavior of some radical protesters who besieged the liaison office's building and defaced the national emblem.

A statement issued by the liaison office late Sunday night said that after a parade ended at its destination, some radical protesters besieged the liaison office's building located in the western part of the Hong Kong Island.

The rioters devastated facilities, defaced the national emblem, and painted words insulting the country, going far beyond a peaceful demonstration.