Russian attacks on Ukrainian city that was initially spared worst have increased since Washington-Moscow detente

• Russia-Ukraine war – latest news updates

Olena Palash heard a loud buzzing above her flat in the Ukrainian port of Odesa. It was 11pm. First one drone, and another, then more. Soon afterwards, one of the Shaheeds crashed into the children’s clinic where she works. An explosion shredded the building’s facade. The metal covering of a car park was remade into a spaghetti-like jumble. Another drone smashed into a nearby kindergarten.

The attack on 18 February knocked out a substation and plunged some of the city into darkness. Four people were injured, including a 10-year-old girl, and 80,000 were left without heat. Russia’s air war in the skies above Ukraine is nothing new. But since negotiations began between the US and Russia – talks from which Kyiv has been excluded – the raids have got dramatically worse.