Russian officials say more than 100 Ukrainian drones were shot down, sparking a wildfire and setting an apartment block alight in one of the largest barrages over Russian skies.

Ukraine on Sunday said it sent more than 100 drones deep inside Russia to hit a major weapons depot, as it stepped up attacks further inside Russian territory. Russia's defence ministry on Sunday said its air defences had destroyed and intercepted a total of 125 Ukrainian drones over its territory overnight.