Spain's Canary Islands have seen a surge in migrant arrivals from West Africa. Many undertake the perilous journey in hopes of reaching Europe, often resulting in tragic loss of life. The route has seen increases in attempts despite overall declines in irregular crossings into the EU.

MADRID — More than 550 migrants have arrived in Spain’s Canary Islands in boats over the past two days, Spain’s maritime rescue service said Thursday. At least one body was found in one of ...