Montserratians in the United Kingdom including Montserratian-born immigrants to the United Kingdom and their British-born descendants constitute the second largest number of overseas British citizens living in the UK (behind Gibraltarians).
British control was established in 1632 and to this day it remains an overseas territory of the United Kingdom.
This in itself makes it easy for the overseas British citizens to migrate to the UK with few problems.
The volcano later continued to erupt over the following years, and ultimately two thirds of Montserrat's population left the island.
The UK immediately offered assistance, and began to welcome large numbers of refugees from the island.