BBC's most experienced correspondents bring you compelling interviews on every subject. From devastating natural disasters to inspiring triumphs of the human spirit, BBC Newshour has the world covered.
At least 58 people were killed in the apparent chemical attack on Khan Sheikhoun in north-west Syria. The White House says it's "confident" the government of Bashar al-Assad was behind it.
Also in today's programme, the graphene-based sieve capable of removing salt from seawater. And fresh attempts to locate Caligula's pleasure boat.
(Photo: A Syrian child is treated in hospital after the apparent chemical attack. Credit: Mohamed al-Bakour / AFP / Getty Images)
Russian media reports 10 people have been killed by an explosion in the St Petersburg metro.
Also in the programme; President Trump meets with Egypt's President Sisi; and the UN criticises the Australian government for prejudiced treatment of aboriginal communities.
(Photo: Images of the damage as broadcast on Russian television. Credit: EVN)
Authorities in the Russian city of St Petersburg say ten people have been killed in an explosion on the metro system that's being treated as a suspected terrorist attack. We hear from an eyewitness, a journalist at the scene and a security analyst.
Also on the programme: The Mexican newspaper that shut down after one of its reporters was shot dead. And is there a link between Marine Le Pen and the Kremlin?
(Image: The damaged train carriage at Technological Institute metro station in St Petersburg. Credit: AFP/Getty Images)
Over 240 killed in Mocoa, south-west Colombia by a surge of mud and water. We hear the latest on the rescue efforts.
Also in the programme: Martyn Ware of the Human League on the legacy of Roland synthesizers; many killed at Pakistan shrine and Warhol's Mao portrait.
(Picture: A man looks at a destroyed area after heavy rains caused several rivers to overflow, pushing sediment and rocks into buildings and roads in Mocoa, Colombia April 1, 2017. Credit: REUTERS/Jaime Saldarriaga)
Some environmentalists in Colombia believe that deforestation has made the tragedy in Mocoa worse. Hundreds of members of the Colombian army and emergency services have joined the search operation in the Amazonian city, where more than two hundred people are known to have died.
Also in the programme: South Africa's Democratic Alliance charges former party leader over colonialism comments; Civil rights campaigner Darcus Howe dies at the age of 74.
(Photo: A man walks in a muddy street following mudslides caused by heavy rains in Mocoa, Putumayo department, southern Colombia on April 2, 2017. Credit: LUIS ROBAYO/AFP/Getty Images)
Hungary delays plans to house migrants in a camp following recent rulings by the European Court of Human Rights. Government minister Laszlo Pakovics defends the scheme.
Also on the programme: Unrest in Paraguay; Gilbert Baker remembered and the "wrong" Sydney
(Picture: An improvised tent at a makeshift refugee and migrants camp close the border between Serbia and Hungary, near the Serbian town of Horgos, on September 29th 2016 Credit: AFP)