Hong Kong gears up for more unrest; China's forces hold drills along border

Hong Kong's airport, one of the world's busiest, was returning to normal but under tight security after thousands of protesters had jammed its halls during the week

Hong Kong braced on Thursday for more mass demonstrations through the weekend, as China again warned against foreign interference in the city's escalating crisis as mainland paramilitary forces conducted exercises just across the border.

Western governments, including the United States, have stepped up calls for restraint, following ugly and chaotic scenes at the city's airport this week, which forced the cancellation of nearly 1,000 flights and saw protesters set upon two men they suspected of being government sympathisers.

The airport, one of the world's busiest, was returning to normal but under tight security after thousands of protesters had jammed its halls on