Saturday’s bombardments hit four towns around and to the southeast of Kharkiv, Oleg Synegubov, the head of the Kharkiv region, posted on Telegram, adding that one of those killed was a child. Kyiv has advised citizens to leave the region while they can as Russian bombing intensifies. On Sunday, shells hit a school and an apartment block, while on Friday at least 57 civilians were killed by a Russian attack on a railway station. Officials in Dnipro, which lies outside Donbas, said that the airport had been destroyed by shelling on Sunday and five people had been injured. “There is nothing left of it,” said Valentin Reznichenko, the governor of the Dnipropetrovsk region. “Rockets keep flying and flying.” Meanwhile Volodymyr Zelensky, the Ukrainian President, on Sunday asked Olaf Scholz to intensify sanctions and boost defence and financial aid packages in a phone call with the German chancellor. The previous day, Boris Johnson had travelled to Kyiv by train and promised to give Ukraine an extra 120 armoured vehicles.

Ukraine’s survival ‘depends’ on the United States

The White House has said that it has sent weapons and military kit worth £1.3 billion to Ukraine since the war began, and has promised more, but Mr Zelensky said in an interview with CBC News that he was sceptical that the promised extra kit would arrive. Ukraine’s survival “depends on how fast we will be helped by the United States. To be honest, whether we will be able to survive depends on this,” Zelensky said. “I have 100 per cent confidence in our people and in our armed forces, but unfortunately I don’t have the confidence that we will be receiving everything we need.”