Ukraine has claimed to have struck a Russian industrial facility producing fuel for missiles, as Moscow says it has foiled several assassination plots on senior officers.Kyiv said on Thursday that its air force had had carried out a strike in Russia’s Rostov region on a factory which was used to produce solid fuel for ballistic missiles used in attacks on Ukraine.

To ensure the safety of civil aircraft flights, temporary restrictions have been introduced on the operation of Sheremetyevo, Domodedovo, Vnukovo, Zhukovsky and Kaluga airports,” Russia’s aviation authority said.

The missile has been branded as Ukraine's answer to dwindling Western aid, building self-reliance in defense technologies.

Zelensky warns of greater military cooperation between Moscow and Pyongyang, including sending more troops and military equipment

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

Vladimir Putin declared on Thursday that Russia was closer to reaching its goals in Ukraine and that the front line was advancing every day.

A Russian general who was wanted by Ukraine for using chemical munitions was killed by a remotely detonated bomb in Moscow on Tuesday, Russian authorities said.

Igor Kirillov, who was named the head of Russia’s nuclear defense forces in April 2017, was under sanctions from several countries including the U.K. and Canada for his role in Ukraine.

But he attached numerous caveats to the idea of compromise, suggesting Moscow’s goal of subjugating Ukraine and winning major security guarantees remain in place. Read the analysis by Steve ...

A massive Russian missile and drone barrage on Ukraine's energy infrastructure on Christmas morning was "inhumane," Ukrainian President Zelenskyy said.

Russia wants a legally binding deal for a lasting peace in war-torn Ukraine that would ensure the security in the region, Foreign Minister Sergei Lavrov said.