At least six people were killed overnight, shortly after the American president announced that he did not want to waste his time holding a summit with the Russian leader.

Ukraine's defense ministry said it continues to hit Russia's industries, "weakening the offensive potential of the aggressor state."

President Donald Trump says his plan for a swift meeting with Russian leader Vladimir Putin is on hold because he doesn’t want it to be a “waste of time.”

Ukraine has hit a Russian chemical plant with UK-made Storm Shadow missiles, the Ukrainian military said on Tuesday. Calling the strike "a successful hit" that penetrated the Russian air defence system, Ukraine's general staff of the armed forces said they were still assessing the outcome of the "massive combined missile and air strike".

A planned summit between U.S. President Donald Trump and Russian President Vladimir Putin was put on hold on Tuesday, as Moscow's rejection of an immediate ceasefire in Ukraine cast a cloud over attempts at negotiations.

Attacks on Ukraine's power grid have grown more effective as Russia launches hundreds of drones, some equipped with cameras that improve targeting, overwhelming air defences.View on euronews

As temperatures drop in Ukraine, Russia has stepped up drone attacks on power facilities supplying millions of homes across the country.

A contentious meeting between President Trump and President Volodymyr Zelensky of Ukraine produced no obvious progress toward a cease-fire.