21.   Tsang Kin-shing, a Democrat and former legislator, said protests will escalate if the government does not offer more money.

22.   The number was later reduced, as protests escalated.

23.   The violence was sparked when a protest about the death of a man in police custody escalated into a riot.

24.   Management fear that the protest might escalate with pickets placed at airports and widespread disruption of flights to and from Ireland.