Ukraine and Russia are blaming each other after an apparent drone attack caused a fire at Europe’s largest nuclear power plant. Thick black smoke was seen billowing out of the now Russian-occupied Zaporizhzhia facility late on Sunday night – though thankfully the UN’s nuclear watchdog hasn’t recorded increased radiation levels around the area. Ukraine’s President Volodymyr Zelensky said “Russia must be held responsible” – while Russia’s Foreign Ministry spokesperson Maria Zakharova accused Ukraine of “nuclear terror”. The attack comes as Ukraine made its strongest advance into Russia since the war began in February 2022. Russia says 180,000 people have been evacuated from border areas and local authorities have declared a state of emergency, while Russian President Vladimir Putin has vowed to “kick the enemy out.”