Russia says it has detected a shift from U.S. President-elect Donald Trump and his team towards recognising the "realities" on the ground in Ukraine, and sees this as a welcome sign as it prepares to study his plan for ending the war.

For Russia, the return of Donald Trump provides a chance to end western sanctions against it, and provide solace for its appalling war losses.

Ukraine struck Russian regions with a major drone and missile attack overnight, damaging at least two factories and forcing schools to close in a major southern Russian city, according to Russian officials and media.

The barrage appeared to be one of the largest recent assaults in Ukraine’s campaign to damage Russia’s war machine on its home territory.

Ukraine used six British Storm Shadow missiles and US-made Atacms tactical ballistic missiles in what Kyiv described as its “largest attack” on Russian military facilities.