A Russian drone attack on a residential block killed eight people including three elderly couples in the eastern Ukrainian city of Sumy, prosecutors said on Thursday. Moscow has pummelled Ukrainian cities with dozens of drones or missiles almost daily since it invaded in early 2022.

A Russian drone attack on a residential block killed nine people including three elderly couples in the eastern Ukrainian city of Sumy, officials said on Thursday.

In December, Ukrainian drones targeted oil depots and refineries in Smolensk, Oryol, Bryansk and Rostov — an area that had previously been targeted in July. The General Staff of Ukraine’s Armed Forces claimed that the July attack on the Rostov refinery destroyed 1.5 million tons of oil and oil products worth $540 million (£433m).