Calais is a French port city in the Pas-de-Calais department, of which it is a subprefecture. Calais is the largest city in Pas-de-Calais. The population of the city proper is 67,544; that of the urban area is 144,625. From Wikipedia
Surging arrivals, including 656 in a single day, prompt UK Government to intensify enforcement against smuggling networks.
