British foreign secretary Boris Johnson, who took a phone call from two Russian pranksters, one of whom posed as the prime minister of Armenia. Photograph: Pablo E Piovano/Bloomberg

Two well-known Russian pranksters enjoyed an 18-minute phone call with British foreign secretary Boris Johnson on Thursday after one posed as the prim(...)

Ukrainian president Petro Poroshenko: recording contains nothing to embarrass him at home. Photograph: Jonathan Nackstrand/AFP/Getty Images

Ukraine has blamed the Kremlin and Russia’s security services for a bizarre prank call to its president, Petro Poroshenko. Mr Poroshenko’s administ(...)