The 11th attack this year on Ukraine's energy infrastructure comes amid uncertainty about how President-elect Donald Trump might deal with the conflict.

More than a million households were left without power in Ukraine after a widespread Russian aerial attack targeted critical energy infrastructure facilities across the country overnight, authorities in the country said on Thursday.

Putin’s missile attack on energy grid is ‘vile escalation’ as 1m without power - Explosions heard across Ukraine in Russia’s second big attack on country’s energy system this month