 The international president of the medical aid agency Médecins Sans Frontières has appealed to other charities to return to Sudan to help meet the overwhelming needs of its citizens. Events are taking place today to mark the 10th anniversary of the MH17 disaster that saw a Malaysian Airlines flight shot down over eastern Ukraine, killing all 298 people on board. The aircraft was struck by a Russian-made missile over separatist-held pro-Russian territory.