Ukraine launched 556 drones at 14 Russian regions in its largest Moscow attack in over a year, killing four and damaging infrastructure near an oil refinery.

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.

MOSCOW: A huge wave of more than 500 Ukrainian drones attacked Russia overnight, killing three people in the Moscow region, authorities said on Sunday. Air defenses shot down 556…