The Kremlin has reacted to Ukraine’s threats to assassinate Russian President Vladimir Putin, saying Moscow is aware of dangers coming from the “Kiev regime,” and has ramped up measures to ensure the security of the Russian leader.

Biden has announced plans to supply new air defense systems to Ukraine in the coming months.

The Kremlin says Ukraine's anti-missile fire, not Russia, had hit a children's hospital in Kiev on Monday.

Kremlin says the US and its allies will support Zelensky until he completes his objectives, after which he will be replaced.

The German chancellor says the revenues from frozen Russian assets should be used for weapons purchases for Ukraine.

Russia has refuted a US claim that its forces in Ukraine had breached an international prohibition on chemical weapons by employing banned substances such as a prohibited choking agent.

Moscow has rejected claims by French President Emmanuel Macron that Russia would target the Paris Olympics this summer.