Mainland China
The demonstration was the latest against the government's controversial extradition bill.
Over a million protesters took to the streets in Hong Kong, marching against proposed amendments to extradition laws. The changes would allow Hong Kong to hand over fugitives to mainland China.
A mega-bridge has been opened that connects Hong Kong to mainland China. At 55 km long (34 miles), the Hong Kong-Macau-Zhuhai bridge is now the longest sea-bridge in the world. Travel time between the three regions connected by the bridge has been dramatically cut.