Ukraine and Russia: What you need to know right now

(Reuters) - Ukrainian President Volodymyr Zelenskiy pushed for further talks with Russia as Moscow signalled it was scaling back its ambitions to focus on territory claimed by Russian-backed separatists in the east. FIGHTING * Russian forces have taken control of the town of Slavutych, where workers at the defunct Chernobyl nuclear plant live, the governor of Kyiv region, Oleksandr Pavlyuk, said. * The mayor of the besieged southeastern port of Mariupol, Vadym Boichenko, said the situation in city remained critical, with street fighting taking place in its centre. * Russian Defence Minister Se...