Ukraine energy sector hit by 'massive' Russian attack, leaving at least one million without power  ABC NewsPutin makes new threat amid mass blackout  news.com.auPutin threatens to target Kyiv ‘decision-making centres’ with new missile after US and UK-made weapons used in Russia – as it happened  The GuardianA million Ukrainians without power after Russian strike  The Canberra TimesRussia-Ukraine war: Putin threatens to target Kyiv 'decision-making centres' with new missile  BBC.com