In the wake of massive drone strikes on Kyiv, Ukraine launched air attacks on May 17 called the heaviest to hit the Moscow area in over a year. At least four people died, officials said on Sunday, in strikes on the Moscow and Belgorod regions.

President Volodymyr Zelensky says 15 civilians killed in 1,567 drone strikes over two days.

A huge wave of almost 600 Ukrainian drones attacked Russia overnight, killing three people in the Moscow region and one in the Belgorod region, authorities said on Sunday.