The latest assault on Kyiv came as Ukrainian peace negotiators are due to meet their U.S. counterparts this weekend.

KYIV (Reuters) -Russian missile and drone strikes on Ukrainian capital Kyiv has killed at least four people, the head of Kyiv's military administration, Tymur Tkachenko, said on Tuesday. He had earlier said that at least seven more had been injured overnight.

A major Russian drone and missile attack struck a railway hub near Kyiv overnight, damaging a depot and train carriages and forcing cancellations across the region, according to Ukraine’s state railway operator.

Russia unleashed a major missile and drone barrage on Ukraine overnight into Saturday, while Ukrainian President Volodymyr Zelenskyy said he had a “substantive phone call” with American officials engaged in talks with a Ukrainian delegation in Florida,

Russia attacked two Ukrainian ports on Friday, damaging three Turkish-owned vessels including a ship carrying food supplies, Ukrainian officials and one ship owner said, days after Moscow threatened to cut "Ukraine off from the sea".

Friday’s attacks by Russian forces targeted Chornomorsk and Odesa ports in Ukraine’s southwestern Odesa region on the Black Sea. A Ukrainian navy spokesperson told the Reuters news agency that three Turkish-owned vessels were damaged in total, but did not provide additional details.