 Death by exposure occurs in the deserts of Southwestern United States during the hot summer season.In 2016 there were approximately 8,000 migrant deaths, with about 63% of deaths occurring within the Mediterranean.Immigrants from countries that do not have automatic visa agreements, or who would not otherwise qualify for a visa, often cross the borders illegally in some areas like the United States–Mexico border, the Mona Channel between the Dominican Republic and Puerto Rico, the Strait of Gibraltar, Fuerteventura, and the Strait of Otranto.