DONALD Trump’s crunch talks with Vladimir Putin are at risk of collapsing after a meeting between their aides was mysteriously cancelled. US secretary of state Marco Rubio was due to meet

The Kremlin denied Tuesday that it was holding up President Donald Trump’s latest push to end the war in Ukraine, and insisted it had not changed its demands ahead of possible talks. Trump had announced that Russia and the United States' top diplomats would meet this week, with his own summit with Vladimir Putin to follow in Budapest, Hungary.

Russia's modified drones are piercing Ukraine's defences at greater rates than before, targeting energy infrastructure.

Kot is among millions of Ukrainians who are bracing for another winter of power cuts and possibly blackouts as Russia renewed its campaign of attacks on the country’s energy grid. Analysts and officials say that this year Moscow has shifted tactics, targeting specific regions and gas infrastructure.

U.S. president wants a swift end to the conflict, but both sides are digging in over the region in Ukraine’s east.

Trump wants Russia and Ukraine to freeze the war on the current battlelines, with Moscow holding a huge swathe of eastern Ukraine.

We’ve verified footage showing the destructive aftermath of reported Russian drone strikes in Kherson, a city near the front line in southern Ukraine. Three people are being treated in hospital for injuries after the attacks, Kherson region officials have confirmed.

Ukraine's president and European leaders are accusing Russian President Vladimir Putin of stalling on peace efforts in Ukraine.