Ukraine has come under heavy Russian bombardment overnight, with a child among three people killed in Kyiv, Ukrainian officials said early on Thursday.

Mayor Vitali Klitschko said the attack on Ukraine's capital was 'massive' with military officials confirming at least 24 people had been injured. A five-storey building collapsed in the Darnytski district while a fire had also been reported in a high-rise residential building in the neighbouring Dnipro district, the mayor added.

The wave of missiles comes after more than 100,000 Ukrainian homes were left without power by the latest Russian drone attacks on energy infrastructure, Ukraine's President Volodymyr Zelensky said on Wednesday.

In a post on Telegram, Tymur Tkachenko, the head of Kyiv's military administration, said the child who was killed was a 14-year-old girl. At least five children had been injured in the latest drone strikes. He noted more than 20 districts had been targeted, with many buildings including a kindergarten catching on fire.

Three and a half years after Russia's full-scale invasion of Ukraine, fighting on the ground shows no sign of abating. The latest international effort to achieve a ceasefire in Ukraine was launched by US President Donald Trump earlier this month. He met with his Russian counterpart Vladimir Putin in Alaska and also with Zelensky during talks with European leaders in Washington.

Trump has been pushing for a Putin-Zelensky summit, which has received backing from Ukraine's president, contingent on security guarantees from Western allies to prevent any further Russian incursions in the event of a peace deal.

On Tuesday, Zelensky met with the head of Britain's armed forces, Adm Sir Tony Radakin, to discuss strategies for ending the war.

US Special Envoy Steve Witkoff indicated he would meet with Ukrainian representatives in New York this week, asserting that 'we talk to the Russians every day'. The EU's foreign policy chief, Kaja Kallas, has warned that conceding Ukrainian territory to Russia under a peace agreement would be a 'trap'.