By Olena Harmash and Tom Balmforth KYIV (Reuters) -Russia unleashed a major missile attack on Ukraine on Saturday, smashing a nine-storey apartment block in the city of Dnipro, killing at least five people and striking vital energy facilities across the country, officials said. The nation’s Energy Minster German Galushchenko warned the strikes that targeted the majority of the regions would make the coming days “difficult.” Fifteen people were rescued after being buried under a section of an apartment block that was reduced to rubble in the east-central city of Dnipro, where smoke billowed int…