A pre-dawn Russian missile salvo on the Ukrainian capital killed at least one civilian and injured four others on Wednesday, sparking several fires in the city of three million, Ukrainian officials said.

The attack comes after president Zelensky suggested peace negotiations with Russia could include a territory swap.

Russia launched ballistic missiles and more than 100 drones in a wave of attacks across Ukraine overnight that killed three people and injured at least 16, including a child, authorities said.