China's central government will not "sit by and watch" if the situation in Hong Kong deteriorates and turns into unrest and becomes uncontrollable, said Liu Xiaoming, Chinese ambassador to the UK, on Thursday, adding that Beijing has "enough solutions and power" to put an end of the violence swiftly.

"If the situation deteriorates further into unrest, uncontrollable by the Hong Kong Special Administrative Region (SAR) government, then the central government will not sit by and watch," Liu said during a press conference in London.

Answering questions on whether the central government will send forces to Hong Kong, Liu said he believes the situation in the city is still under the control of the Hong Kong SAR government.

The central government fully "understands, respects and supports" the SAR government led by Chief Executive Carrie Lam, and Beijing believes Lam's government and police are capable of handling the situation and restore order, Liu stressed.

Before showing a four-minute video clip of radical protesters damaging and vandalizing government buildings, attacking police with petrol bombs and obstructing public transport, Liu said certain Western media outlets have failed to deliver credible news reports about Hong Kong while choosing to show one-sided stories.