Kenya's Eliud Kipchoge (left) celebrates winning the London Marathon next to runner-up and last year's winner Wilson Kipsang, also of Kenya, on Sunday. Facundo Arrozabalaga/EPA/Landov hide caption

itoggle caption Facundo Arrozabalaga/EPA/Landov

Mohammed Ali Malek is seen at Catania's tribunal, on Friday. Italian prosecutors blamed the captain of a grossly overloaded fishing boat for a collision that capsized and sank his vessel off Libya, drowning hundreds of migrants. Antonio Parrinello/Reuters/Landov hide caption

itoggle caption Antonio Parrinello/Reuters/Landov

In this photo made available Thursday, April 23, 2015, migrants crowd and inflatable dinghy as the Italian Coast Guard approaches them, off the Libyan coast, on Wednesday. Alessandro Di Meo/AP hide caption

itoggle caption Alessandro Di Meo/AP

Chantel, 3, and Antoni, 7 months, migrated to Spain from their native Cameroon, with their mother Tatiana Kanga, 25. Tatiana was nine months pregnant with Antoni when they crossed the Mediterranean Sea together in an inflatable boat. Lauren Frayer/NPR hide caption

itoggle caption Lauren Frayer/NPR

The King Jacob, a Portuguese-flagged cargo vessel, was the first ship to arrive near the migrant boat that sank off the Libyan coast over the weekend. The boat had been carrying more than 800 people. Alessandro Fucarini/AP hide caption

itoggle caption Alessandro Fucarini/AP

Hamudeh al-Masaadi plays on the shores of Lake Constance near Friedrichshafen, where they wait as their request for asylum is processed. Joanna Kakissis for NPR hide caption

itoggle caption Joanna Kakissis for NPR

Mohammed Ali Malek (left) and Mahmud Bikhit (center) were identified by survivors as the captain and a crew member of the vessel that sank in the Mediterranean this weekend. They're seen here shortly before an Italian coast guard ship took them to Catania, Sicily. Alessandro Bianchi /Reuters /Landov hide caption

itoggle caption Alessandro Bianchi /Reuters /Landov