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At least 40 people have been killed in an attack on a camp for displaced people in Sudan's western Darfur region, according to an aid group that works there. We'll speak to the ÃÛÑ¿´«Ã½ correspondent following this conflict to get the latest. European leaders have warned against Ukrainian borders being redrawn by force – three days before Russia's Vladimir Putin and US President Donald Trump are due to hold a summit on Ukraine in Alaska. We'll ask what the talks could achieve. And world-famous coral reefs along Western Australia's coast have suffered the worst bleaching on record, as scientists say the state has faced the "longest, largest and most intense" marine heatwave. We hear why some blame Australia for not doing enough to save the reefs.

Presenter: Mark Lowen
(Photo shows a displaced Sudanese mother of five preparing food at a camp shelter amid the ongoing conflict. Credit: REUTERS/Mohamed Jamal)