"Ukraine was brutally attacked on Christmas Day," said Keith Kellogg, President-elect Donald Trump's pick for Ukraine and Russia envoy.

DTEK, Ukraine’s largest private energy company, reported power outages across large areas of the country after Russia fired missiles against DTEK power stations in strikes on Christmas day. DTEK said

Ukrainian civilians on Christmas Eve were huddled in bunkers as their armed forces attempted to shoot down the Russian drones and missiles they saw streaking across their skies.