Teams from both Kyiv and Moscow are back in Saudi Arabia for separate talks with the US. Meanwhile, Canada’s new prime minister, Mark Carney, calls a snap general election for a month’s time and Zürich narrowly approves a ban on digital advertising screens and most commercial adverts in public spaces. Plus: Greek tourism minister Olga Kefalogianni assures international travellers that Santorini is “fully prepared” to welcome visitors.