Disputes over immigration have divided the European Union, with splits between and within governments about who should take responsibility for migrants crossing the Mediterranean. The issue threatened to bring down German Chancellor Angela Merkel and was a major factor in Britain’s vote to leave the EU.

“We consider it a political crisis, not a migrant crisis. The numbers are not that significant,” said Leonard Doyle, spokesman for the U.N. International Organization for Migration.

A crew member of charity ship MV Lifeline reacts during a vigil to commemorate migrants who have lost their lives whilst crossing the Mediterranean, in Valletta's Marsamxett Harbour, Malta July 5, 2018. REUTERS/Darrin Zammit Lupi/File Photo

“We are concerned that the toxic narrative against migrants, to put it bluntly, be diminished, and people see migration for what it is. It’s a necessary part of the modern world, provided it’s managed. The issue is that people’s perception is that it’s out of control,” he said.

The numbers of people risking the journey across the sea peaked in 2015, but have fallen sharply in each subsequent year. In the first half of 2018, 46,449 migrants and refugees entered Europe by sea, according to the IOM.

“This isn’t a crisis,” said Charley Yaxley, a spokesman for the U.N. refugee agency UNHCR. “But what continues to be the case is that a small handful of countries are bearing a disproportionate responsibility for receiving new arrivals.

“What’s needed is for European states to come together with countries in the Mediterranean region as well to establish a fair and equitable distribution of refugees and asylum seekers so that the responsibility is shared.”