Officials say a Russian drone has blasted a hole in an apartment building in northeastern Ukraine during a nighttime attack, killing at least four people and injuring nine others.

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.

Videos showed fireballs over a facility in Ryazan, 110 miles southeast of Moscow. Kyiv is seeking to disrupt Russian military logistics and put pressure on the country’s economy by striking its oil industry.