Hong Kong descended into a second day of clashes between protesters and riot police on Sunday with officers firing tear gas in a busy shopping district. Pro-democracy activists have stepped up their four-month-long campaign in the financial hub ahead of celebrations planned for the 70th anniversary of communist China’s founding from Tuesday. Police fired tear gas at protesters in Causeway Bay after angry crowds surrounded and heckled officers who had conducted stop and searches and then made a series of arrests.
