A suicide bomber dressed as a student killed at least 48 people, most of them students, and injured 79 others at a school assembly in the northeastern Nigerian town of Potiskum on Monday, a hospital official said.
Global regulators on Monday proposed new rules to ensure that bank creditors rather than taxpayers pick up the bill when a big lender collapses.
Iran, the United States and the European Union began an unscheduled second day of talks on Monday over disagreements blocking the resolution of a confrontation over Tehran's nuclear programme, U.S. and Iranian officials said.
East Ukraine's rebel stronghold Donetsk was pummeled on Sunday by the heaviest shelling in a month, and the OSCE said it spotted an armored column of troops without insignia in rebel territory that Kiev said proved Moscow had sent reinforcements.
