The train had been operating from Chop, near Ukraine‘s western borders with Hungary and Slovakia, to the town of Barvinkove.

They said they have never experienced cold like that. And I personally asked President Putin not to fire into Kyiv," said Trump.

Officials in Ukraine say that a heavy Russian drone attack on Odesa has killed at least three people and wounded 23, including children and a pregnant woman.

The number of deaths, injuries and missing is approaching a grim milestone after nearly four years of fighting.

A new report warns that the number of soldiers killed, injured or missing in Russia's war in Ukraine could reach 2 million by spring

US President Donald Trump claimed his Russian counterpart Vladimir Putin agreed to a week-long pause in attacks on major Ukrainian cities, including the capital, Kyiv, as the country grapples with plummeting winter temperatures.

The Ukrainian leader warned the escalations were a signal that Russia is preparing a “new massive strike” and said the onslaughts discredited peace talks. “The Russians are preparing a new massive strike – our intelligence indicates this,” he said in a video to his social media account on Wednesday.