BARCELONA, Spain (AP) — Pope Leo XIV is delving into the hotly contested issue of migration by visiting two flashpoints — Spain’s Canary Islands in the Atlantic next week, and Italy’s Lampedusa island in the Mediterranean in early July.

These rocky, remote outposts of Europe have struggled with the arrival of tens of thousands of mostly African migrants through some of the world’s deadliest migration routes. Even as numbers decreased this year, especially in the Canaries, the issue continues to roil politics in these historically Catholic countries.