Hong Kong International Airport canceled all flights later Monday, with authorities blaming demonstrators for the disruption of one of the world's busiest terminals, a dramatic escalation of anti-government protests that have roiled the Asian financial hub.
At the same time a Chinese official in Beijing warned signs of "terrorism" are emerging. China's People's Armed Police also assembled in the neighboring city of Shenzhen for exercises, the state-backed Global Times newspaper said.
Both moves lift the stakes sharply after a weekend of skirmishes between police and activists, in which both sides appeared to boost their resolve with new tactics.