At least 45 migrants died in an August 17 shipwreck off the coast of Libya, the deadliest such incident this year. The boat’s engine exploded off the coast of the city of Zuwarah.
More than 300 people have died trying to cross the Mediterranean Sea from Libya this year, according to the United Nations, but the real figure could be much higher.
On Wednesday, the U.N. high commissioner for refugees and the International Organization for Migration called for international search and rescue efforts to be stepped up. The European Union has shied away from launching its own rescue operation.