At least 139 migrants died, including 15 children, and 84 went missing when an overcrowded boat sank while heading from Djibouti to Yemen, a UN agency said on Sunday. The vessel was carrying 305 people, most of them Ethiopian, when it capsized north of the Djibouti town of Obock on the night of October 8-9, the International Organization for Migration (IOM) said in a statement. “Survivors told me that the boat started to sink backwards as soon as they got in it,” Alexandre Coissac, IOM chief of...