Hong Kong protests: graffiti, tear gas and riot police
Thousands of people are marching in Hong Kong in the latest of a series of protests by pro-democracy campaigners.
Protesters ignored the designated finish line, continuing on to China's government headquarters in Hong Kong, where anti-China graffiti was sprayed.
The BBC's Stephen McDonell was amid the pro-democracy protesters as tear gas began to be fired.
21 Jul 2019