麻豆约拍

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)