China's Xi Jinping declares Hong Kong-Zhuhai-Macau bridge open

Chinese President Xi Jinping on Tuesday declared open a new bridge connecting Hong Kong, Macau and the Chinese city of Zhuhai, the state news agency Xinhua reported.

The 55-kilometre-long bridge, situated in the Lingdingyang waters of the Pearl River Estuary, is the world's longest sea bridge, state-run Xinhua news agency reported.

The construction of the multibillion-dollar bridge had begun in December 2009.

It will slash the travel time between Hong Kong and Zhuhai from three hours to just 30 minutes, further integrating the cities in the Pearl River Delta.

Earlier, lawmakers in Hong Kong warned that the bridge, which provides a direct link to Hong Kong International Airport, could bring extra traffic to Lantau Island, and cause congestion, South China Morning Post said in a report.

The Transport Department has already capped the number of permits for cross-border private cars at 5,000, it said.

A government-commissioned study from 2016 estimated that 29,100 vehicles would use the bridge daily, by 2030, which was 12 per cent down from a report written in 2008.